egg [sb.] on

释义：“怂恿、撺掇”，在留学文书里描写小伙伴们在一旁起哄让做坏事时可以这么说。

例句：
The other children egged the boy on, but he did not want to throw the stone through the window.
Billy's buddies egged him on, so he played game after game until he started to crack.