生疏

The director likes to teach a class occasionally, just to keep her hand in.

院长偶尔会教教课，让业务生疏。

He is still strange to the work.

他对这项工作仍很生疏。

I'm a stranger in these parts.

我在这些地方人地生疏。

As a beginner,everything is very new to him.

他,对一切都很生疏。

My best friend is such person, the one cannot feel strange not to contact even a year. I will cherish the eternal streamy friendship.

我的好朋友这样一个人，即使过了一年也会觉得生疏的人，君子之交淡如水，我还希望有如细水常流的友谊。