through adv. 通过；径直 adj.直达的；直通的 prep.穿过；凭借

thick adj. 厚的；浓密的

thin adj. 薄的；瘦的；稀的

drive－through 汽车餐厅

through and through 完全地

through with 完成...

through thick and thin 不顾艰难险阻

We've been friends so long I know you through and through.

咱们多年的朋友，对你太了解了。

Are you through with your work?

你工作做完了吗？

I’ll support you through thick and thin.

在任何情况下我都会支持你们。