not know which way to look

• 不知如何是好；很窘迫

not know which way to look的用法和样例：

例句

1. I just can not think what I'll do without it.
   没有它我真不知如何是好。
2. When the chaps tease him, he doesn't know how to act up.
   当朋友们取笑他时，他不知如何是好。