他们是谁：Who are they?
例句：
许多孩子知道他们是谁，可就是不说。
Many of the children know who they are but are not telling.
现在拥有一个家庭是另一回事,因为你不能随心所欲地选择他们是谁。
Now having a family is a different thing because you cannot choose who they are as you want.
通常他们是为谁来支付账单而争吵。
Mostly, they fight about paying bills.
他们试图找出是谁出卖了他们。
They tried to find out who had ratted on them.
绝妙蓝调
