单词：be in at
参与,参加
be in at的用法和样例：
例句
用作及物动词(vt.)
- I'd like to be in on this scheme.我愿参与这一计划。
- He denied any role in the robbery.他否认曾参与这起抢劫案。
词汇搭配
- be in at the death亲自见到猎物被弄死(...
- be in at the finish被杀时在场(最后阶段...
- be in at 参与(与 ... ...
- be at home in some place在某处觉得安适自在,...