1. at the corner

在拐角处（外）

eg. Ah! yes, at the corner of a street; I can see the shop.

啊，对，在一条街的拐角上，我想起那铺子了。

eg. You turn left at the first intersection. Walk along that road, turn right at the corner.

沿着这条街一直走，在第一个十字路口左拐，再沿着那条路走，在拐角处右拐。

2. be afraid of

害怕

eg. But what was there to be afraid of?

但是到底有什么好害怕的？

eg. Do not be afraid of the loneliness of enlightenment.

不要害怕因造诣深而产生的孤独感。

3. in earnest

认真的；诚挚地；正经的

eg. While you work, you should work in earnest.

当你工作时，你应认真工作。

eg. If I were, this is the stage when I would prepare in earnest for them.

如果我有必要参加考试，我会在这个阶段认真准备考试。