挽狂澜于即倒，扶大厦之将倾

One day I happened to find a chatting ro-om in my QQ, where people were chatting in English. I tried to chat with some of them. To my surprised,I found the oral English of some ju-nior students were better than mine. Unfortunately,the bus I took was overloa-ded.Even so,a driver of the bus still stopped now and then,picked up more passengers all the way.