以in结尾的单词

thin(瘦的）；

rain（雨）；

begin(开始）；

twin（双胞胎）；

pain(疼痛）；

main（主要的）；

napkin（餐巾)；

skin(皮肤）

He stretched out a thin arm and took our hands.

他伸出一条细瘦的胳臂，抓住我们的手。

We\'re waiting for the rain to stop before we go out.

我们要等到雨停了再出去。

I was beginning to think you\'d never come.

我开始以为你是不会来了。

I can never tell the difference between the twins.

我从来都分不清这对双胞胎。