Before electing the next president, elections start gradually from the lowest tier of government to the top government. Before electing the next president, elections start gradually from the lowest tier of government to the top.

Before electing the next president, elections start gradually from the lowest level of government to the tophighest level of government. Before electing the next president, elections start gradually from the lowest level of government to the highest level of government.

Before electing the next president, elections start gradually fromare held at the lowest level of government to the top government.first, slowly progressing to the highest level. Before electing the next president, elections are held at the lowest level of government first, slowly progressing to the highest level.

我如果要写这个句子的话应该说Elections in China are held starting at the lowest level of government, moving to the highest, including the president.　但是我并不想过分修改哈哈．

Before electing the next president, elections start gradually from the lowest government to the top government. Before electing the next president, elections start gradually from the lowest government to the top.

You can omit the second use of the word 'government' because the reader can infer you are still talking about it. This is just a style recommendation. Your usage is still correct but it sounds more natural and less redundant to omit the second one.

Not allOnly certain citizens can vote for the president. Only certain citizens can vote for the president.

Not all 就意味着大部分公民可以投票，only certain相对具体/restrictive

All representatives should be members of the China c's Communist pParty because China's cCommunist pParty is the leading party in China. All representatives should be members of China's Communist Party because China's Communist Party is the leading party in China.

All representatives should be members of the Chinaese communist party because China's communist party is the leading party in China. All representatives should be members of the Chinese communist party because China's communist party is the leading party in China.

All representatives shouldmust be members of the Chinaese communist party because China's communist party is the leading party in China. All representatives must be members of the Chinese communist party because China's communist party is the leading party in China.

你如果想用正式一点说法可以说Communist Party of China, that's the official English name.

The lowest tier of government is the township government, so township level representatives should bare elected first. The lowest tier of government is the township government, so township level representatives are elected first.

The lowest level of government is the township government, so township level representatives shouldmust be elected first. The lowest level of government is the township government, so township level representatives must be elected first.

The secondnext step is thatwhen township representatives elect county level representatives. The next step is when township representatives elect county level representatives.

Then in this way, from lower to top, the prefecture-level city representatives, the provincial representatives, the national representatives.

This is a sentence fragment.

ThenIt continues in this way, from lowerbottom to top, to the prefecture-level city representatives, then to the provincial representatives, and finally to the national representatives. It continues in this way, from bottom to top, to the prefecture-level city representatives, then to the provincial representatives, and finally to the national representatives.

Then, in this way, from lowerbottom to top, the prefecture-level city representatives, the provincial representatives, and finally the national representatives are elected. Then, in this way, from bottom to top, the prefecture-level city representatives, the provincial representatives, and finally the national representatives are elected.

NThen in this way, from lowest to highest, the prefecture-level city representatives, the provincial representatives, and the national representatives have the right to elect the next president. Then in this way, from lowest to highest, the prefecture-level city representatives, the provincial representatives, and the national representatives have the right to elect the next president.

In the last presidential election, there were 2379 national representatives. In the last presidential election, there were 2379 national representatives.

They were officials atfrom different levels of government, and other successful people in different fields. They were officials from different levels of government and other successful people in different fields.

They werinclude officials at different levels of government, and other successful people in different fields. They include officials at different levels of government, and other successful people in different fields.

如果你想说他们不再是officials at different levels of government，可以添加一个"former" (include former officials)

Of course, all those representatives voted for it at the Great Hall of the People of China on the 22nd of October last year, 2022. Of course, all those representatives voted at the Great Hall of the People of China on the 22nd of October last year.

Of course, all those representatives voted for itin the presidential election at the Great Hall of the People of China on the 22nd of October last year, 2022. Of course, all those representatives voted in the presidential election at the Great Hall of the People of China on the 22nd of October last year, 2022.

我查到了英文名字好像是Great Hall of the People.