signal bumping

• 信号冲撞

signal bumping的用法和样例：

例句

1. I could feel of their anger because they don't eat a lot neither do they tweedle, they just keep flying and bumping the cage.
   它们的愤怒是显而易见的，不太爱吃东西，也不叫，只是在笼子里不停地飞，冲撞着笼子。