One language sets you in a corridor for life. Two languages open every door along the way. -- Frank Smith.
一种语言可以为人生开启一条走廊。俩种语言则会使这条人生走廊的沿途上处处开启大门。--弗兰克·史密斯

Corridor 走廊；过道
You can walk down the hallway or corridor.
你可以沿着走廊或过道走。

Mandarin 普通话
My Mandarin was very bad but I think the Chinese people were nice to me because I was trying to speak it.
我的普通话非常糟糕，但我觉得中国人会因为我试着去说普通话而对我非常友好。

Cantonese 广东话
I am fluent in Mandarin and Cantonese.
我的普通话和广东话很流利。

Praise 赞扬；称赞
Chinese people would praise me and be more friendly to me.
中国人会称赞我并且对我更加友好。

Harsh 严厉的；严酷的
I think Chinese language learners are often too harsh on themselves.
我认为中国的语言学习者经常对自己过于苛刻。

Respond 回应；回答；作出反应
That helps you respond to them faster.
这可以帮助你更快速地回应他们。