At the same time, people arefind it difficult to share their creative ideas, state-of-the-art skills, fresh thoughts and so on with potential foreign collaborators.

Conversely, if people are all fluent in English, knowledge-sharing will be very easy to achieve, and thus some international projects will procgress smoother and quicker, which will make a lot of money for the two parties.

Since almost all of these languages are likely to hanve been handed down from ancient times, so they usually contain their local characteristics and can be seen as a symbol of traditional culture.

There are a wide variety of languages in the whole world, which presents some challenges to cross-cultural communication between people havingof different backgrounds.

At the same time, people arehave a difficult toime shareing their creative ideas, state-of-the-art skills, fresh thoughts and so on with potential foreign collaborators.

The meaning is a little unclear, I changed it to my best guess.

Conversely, if people are all fluent in English, knowledge-sharing will be very easy to achieve, and thus some international projects will process smoother and quicker, which can make a lot of money for twoboth parties.

Nowadays, English has become the widestmost widespread language.

Not only is it used by the largest number of people, but also many primary worldwide news outlets, such as BBC and CNN, all choose English as their general language.

Therefore, if people have a good command of English, they will get the latest current affairs from different countries, the most up-to-date research breakthroughs in various scientific fields, and stuffthings like that, – which will definitely help people become amore broad-minded person.

"stuff" is correct but sounds a little too casual for such an advanced essay :)

On the other hand, pushing forward the use of English has some negative influenceeffects, which will cause damage to the development of the local languages, especially minority languages.

Since almost all of these languages are likely to handed down from ancient times, so they usually contain their local characteristics and can be seen as a symbol of traditional culture.

As time goes by, the culture behind the mother tongue will be vague, leading to the risk of cognition ofa loss of understanding of one's own identity.