Our class just on the fifth floor, into a good teacher into the column, they heard the beautiful sounds of singing, so that we relax and not be so uptight.

我们班刚上了五楼，进教师入列好，就听到了优美动听的歌声，使我们放松心情，不再那么紧张。

youdao

My class room is on the fifth floor.

我的教室在第五层。

youdao

My class room is on the fifth floor.

我的教室在第五层。

youdao