I wish that happen to meI could do that. I wish I could do that.

I wish that could happen to me. I wish that could happen to me.

I wish that would happen to me. I wish that would happen to me.

USA, China and Europe. USA, China and Europe.

Just a note: Europe isn't a country :)

The USA, China and a country in Europe. The USA, China and a country in Europe.

Europe isn’t a “country.”

One bussiness trip One business trip

One bussiness trip One business trip

When our life grettingurns to normal. When our life returns to normal.

When oOur life gettingis beginning to return to normal. Our life is beginning to return to normal.

When our life gets / is getting normal. When our life gets / is getting normal.

This isn’t a complete sentence (當你生活恢復正常⋯⋯). What are you trying to say?

After 3 years of lock down in your own country. After 3 years of lock down in your country.

After 3 years of lock down in your own country. After 3 years of lock down in your own country.

After 3 years of lock down in your own country., what would happen if you could visit other countries now? After 3 years of lock down in your own country, what would happen if you could visit other countries now?

What would happen if you can visited other countries now? What would happen if you visited other countries now?

You can visit other countries now, so it's not a question of "what if you could" but rather "what would you do"

Some of my friends go to different countries ion a weekly baseis. Some of my friends go to different countries on a weekly basis.

Some of my friends go to different countries in a weekly base. Some of my friends go to different countries weekly

Some of my friends go to different countries ion a weekly baseis. Some of my friends go to different countries on a weekly basis.

on a weekly basis

If you gotearn enough money and get a long enough holiday, then that won’t be a problem. If you earn enough money and get a long enough holiday, then that won’t be a problem.

This is a complicated sentence, as all of it is conditional. It's easy to make a mistake here.

If you got enough money and holidays that won’t be a problem. If you got enough money and holidays that won’t be a problem.

If you’ve got enough money and holidaytime off that won’t be a problem. If you’ve got enough money and time off that won’t be a problem.

But what would be more “cool” to them your friends will be… But what would be more “cool” to them your friends will be…

I'm not sure what you're trying to say here, sorry.

But what would be viewed as more “cool” to themby your friends will be… But what would be viewed as more “cool” by your friends will be…

But what would be more “cool” to them yourmy friends will be…ould be… if my company sent me on a business trip. But what would be more “cool” to my friends would be… if my company sent me on a business trip.

I assume you’re talking about a hypothetical situation, and that your company isn’t actually sending you on a business trip.

My company is sending me for a business trip. My company is sending me for a business trip.

MIf my company sends me for a business trip. If my company sends me for a business trip.

One of my friend she goess went to three countries within a month!: One of my friends went to three countries within a month:

The colon (:) is there because it flows into the next sentence.

One of my friend she goes to three countries within a month! One of my friend goes to three countries within a month!

One of my friend she goess is going to three countries within aone month / in a single month! One of my friends is going to three countries within one month / in a single month!