妈妈的话总是那么有道理

"Cheer up, the worst is yet to come." Usually said in advance of grounding.
别哭丧着脸，还有更糟的呢。(在关你禁闭之前的提醒)

Because I said so.
我说是怎样就是怎样。

来源:和谐英语学习网-口语频道