expert associate at the president's office翻译成中文

expert associate at the president's office翻译成中文 be expert in与be expert at 的区别 expert at/on/in 有什么区别 be expert at doing 还是in doing 是be an expert in/at/on ,还是be expert in/at/on? be expert at与be good at,be expert in与be good in, expert用法expert后面带介词in,at,on,有什么区别啊? 求翻译：她擅长画画 (be expert at) be expert at和excel in的用法 an expert in/on/at有什么区别 be expert at怎么用 举几个例句 expert at opening 造句用这个造句,限3分钟 an expert in/at/on/with有什么区别?例子：1.an expert in/at teaching small children意思就是说an expert in和an expert at通用对吗?2.an expert in economics3.an expert on foreign affairs4.an expert with the needles become an expert at 与become expert at 与在新概念第二册的Lesson 59与Lesson 94中出现了,Rex soon became an expert at opening the gate与children become expert at holding their breath under water even before they can walk.其中expert前 associate professor associate是什么意思 associate是什么意思 英文简历 associate