We didn't know we were breaking the law.

　　我們那時不知道我們在違法。

　　We need double the amount we already have.

　　我們需要現有數量的兩倍。

　　We put the dog in kennels when we go away.

　　我們外出時把狗寄養(yǎng)在養(yǎng)狗場。