1. call on/upon sb to do sth号召某人干某事;恳求?请(叫)某人干某事?例如: The headmaster called on the students to work harder. 校长号召学生们更努力地学习? We are calling upon you to help us. 我们恳求你的帮助? 2. call on/upon sb拜访;看望某人; call at ...
4.准备做…… get ready for sth. get sth. ready be ready for sth. be ready to do sth. prepare for sth. prepare oneself for sth. prepare to do sth. prepare sth. for sb. ...
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