be called on

• 被迫而 ...
• 义不容辞 ...

be called on的用法和样例：

例句

1. If you don't say anything, you won't be called on to repeat it.
   倘使你不发一言，就不会被要求重复再讲一遍了。
2. If you do not say anything, you will not be called on to repeat it.
   倘使你不发一言，就不会被要求重复再讲一遍了。