call on的读音是什么

1. have recourse to or make an appeal or request for help or information to;

   "She called on her Representative to help her"
   "She turned to her relatives for help"
   

1.要求;呼吁;号召
If youcall on someoneto do something orcall upon themto do it, you say publicly that you want them to do it.

e.g. One of Kenya's leading churchmen has calledon the government to resign...
肯尼亚一位高级宗教人士要求政府下台。
e.g. Frequently he was called upon to resolve conflicts.
不断有人要求他出面解决冲突。

2.(短暂)拜访,探访，看望
If youcall on someone orcall upon someone, you pay them a short visit.

e.g. Sofia was intending tocallon Miss Kitts.
索菲娅打算去拜访基茨小姐。

• call on someone's services要求某人协助...
• call down on someone's head诅咒某人,祈求降祸于...
• call on号召
• money on call随时可收回的借款...
• on call随时可用, 随时到...

call on，see，visit，drop in

这些动词或词组均含有“拜访，访问”之意。

call on社交上的正式用语，指无目的、礼节性的短暂拜访，访问者与被访问者之间一般只有社交或公务关系。

see常用词，含义广泛，既可指接受他人来访，又可指去访问他人。

visit正式用词，强调出于工作需要的访问，也指亲戚朋友间的看望。

drop in多指在计划之外或事先未打招呼的偶然、顺便访问。也可指参观。