1.go back 回去;追溯
Someone is waiting for you at home. You'd better go back right now.
你回去吧, 家里有人找你 。
Will he go back with us, hand in hand, we three together into the town?
他会跟我们手拉着手一起回去—我们三个人一起进镇子去吗?
2.depend on 取决于;依赖;依靠
But I know I have to depend on these foods.
然而我知道,我必须依靠这些食物了 。
Some of them depend on what your program does.
其中一些取决于您的程序要做什么 。