1.He has barely enough money to live on.
他的钱仅够勉强维持生计.
2.The two families live on adjacent streets.
这两家住在两条相邻的街上.. 拜访
I shall call on you next week.
我下星期去看你。
2. 号召;请求
You'd better call on your friends to help you.
你最好请朋友来帮你。i. never.give. up. you