英语翻译英语翻译.用名词性从句句型1.他保持沉默的原因是因为他失败了2.消息传来,前线急需医务人员3.我想他下午不会来

The reason why he keeps silent is that he failed。
The news that there is a urgent need of doctors and nurses in the front line come to us。
I don't think he will come this afternoon。