Choral Concert from Emory & Henry College

There was a choral concert tonight at my university.

As soon as I arrived at the theater, I spotted these American guests.

They were all in black suits.

I could hardly understand the lyrics, because my oral English is poor.

I think it was really difficult for them to remember the lyrics of the/a Chinese song.

There was a badge on all of the singers' breasts.

There was a choral concert tonight at the university I attend.

The singers were students from Emory & Henry College.

I could hardly understood lyrics, because my aural English is poor.

Aural is a scientific term and rarely used in writing or speech outside of the scientific world.

OR you could say: I think it was really difficult for them to remember the lyrics of Chinese songs.

They wanted to be friendly and affectionate toward the Chinese students.

This happened in the past, so use past tense.

I want to say, "Thanks" to the students of Emory & Henry College.

At the end of the concert, the leader of this chorus told us that his college was founded 175 years ago and currently has over one thousand students at present.

Each of the singers wore a badge on their breasts.

If you use the apostrophe, it is "singer's badges."

There was a choral concert tonight at my university.

The singers were students from Emory & Henry College.

As soon as I arrived at the theater, I noticed these American guests.

They were all in black suits.

I could hardly understood the lyrics, because my aural English is poor.

"Aural" is a somewhat formal word. "听力" is normally translated as "listening skills," or just "listening," depending on the context.

To my surprise, they sang a famous Chinese song in Chinese during the middle of the concert.

If it's a Chinese song, it's already assumed that it's in Chinese. You don't need to say "in Chinese." Also, "in the middle" can be a place or a time. "During the middle" can only be a time, so to be more specific, "during the middle" would be more appropriate here.

Suddenly, the audience became excited and enthusiastically applauded at the end of the song.

"观众" means "audience," but it is used differently in English. "Audience" is an object all by itself, whereas "观众" functions more like the plural "audience members." So, while you need "都" to denote the plurality of "观众," in English, "audience" is singular and does not need "all." Also, it is assumed that the audience is already on the scene, so you don't need to say it twice.

I think it must have been really difficult for them to remember the lyrics of a Chinese song.

Actually, it's not that hard, haha. Harder than English, but not as hard as you think. As long as they pronounce it correctly, they don't necessarily have to understand what they are singing. My choir sings songs in other languages (mostly Latin) and we do just fine. :]

They wanted to be friendly and affectionate toward the Chinese students.

Thank you, to the students of Emory & Henry College.

At the end of the concert, the leader of this chorus told us that his college was founded 175 years ago, and now (or currently) has over one thousand students.

There was a badge on all the singers' chests.

"Chest" is the upper portion of the torso. "Breast" is normally referring to what a mother uses to feed her baby. Not appropriate for most contexts. In old English, back in Shakespeare's time, "breast" did mean chest, but nowadays the meaning has changed a bit.

It was composed of the national flags of both America and China.

I would combine this with the previous sentence to make it less choppy, and change the order a bit. "Each of the singers wore a badge on their chest that was composed of China's and America's national flags." Try not to use "of" so many times close together. It's like saying "的" every other word.