Ask after/for sb例句有那些

及物动词 vt.
1.问;询问[+wh-][O6][O1]
She asked him his name.
她问他叫什么.
He asked me where Tom was.
他问我汤姆在何处.
2.请求;要求[+to-v][O2][O1][+that]
He asked that they (should) be allowed to use a dictionary.
他要求准许他们用词典.
I came to ask you a favor.
我来是想请你帮我一个忙.
I asked her to get in touch with Henry as soon as possible.
我要求她尽快与亨利联系.
3.索(价);要求得到[(+for/of)]
They asked too much of her.
他们对她要求过高.
He asked twenty dollars for it.
这件东西他要价二十元.
4.邀请[O][O2]
We have asked the Conrads to come for dinner on Friday evening.
我们已邀请康拉德一家在星期五晚上来吃饭.
不及物动词 vi.
1.问;询问;问候[(+about)]
Tell George my parents ask about him.
转告乔治我父母问他好.
Why do you ask?
你为何要问?
2.要求;请求[(+for)]
She asked for a cup of tea.
她要一杯茶.

ask sb for help
它下面很详细诶

及物动词 vt.
1.问;询问[+wh-][O6][O1]
She asked him his name.
她问他叫什么。
He asked me where Tom was.
他问我汤姆在何处。
2.请求;要求[+to-v][O2][O1][+that]
He asked that they (should) be allowed...