be specialized in和specialized in的区别是什么.specialize如何运用我想写这样的意思，i am david from XXXX,a company (专注于).....想用specialize一字,想知道be specialized in和specialize in的区别是什么。到底需要加

be specialized in 的用法 be specialized in和specialized in的区别是什么.specialize如何运用我想写这样的意思，i am david from XXXX,a company (专注于).....想用specialize一字,想知道be specialized in和specialize in的区别是什么。到底需要加 specialized 大家都说go to sp 的延续性动词是be in sp,但教材书上一句话Have you ever been to Beijing?go to sp 的延续性动词到底是be in sp还是be to sp 求详细分析解答以下句子结构错误的原因错误句子：Be specialized in the export of electronic product,we express our desire to establish the relationship with you.正确句子：Being specialized in the export of electronicproduct,w be off to sp 关于be popular in sp和be popular with sb分一定给地给个例句和比较什么的，本人知道什么地点和人的差别，用法为主。 travel to sp和travel sp investment bank specialized in underwriting corporate and government securities 系动词填空Whenever living things e___ in groups,their society tend to be more complex and specialiWhenever living things e___ in groups，their society tend to be more complex and specialized. compete with SB...in..SP 英语：be away from get back to sp come back to sp return to sp by the lake leave sp leave for sp leave sth at/in I have a toothache（该同义句） -------------------------------------------------- How many teachers are there in your school?Abo be from sp=come from sp翻译 英语翻译The METER has been designed to be used as a component of a centrallzed system for the distribution of oils and other industrial fluids,which must be manufactured and installed by specialized personnel in compliance with the standards rele SP. SP. Every student can__the library at weekends as long as he can show his student card.(选填access sp;have access to sp/sth;sp be accessible to sb)能不能讲下access sp和have access to sp/sth的区别? 英语翻译sender money backfeatured before your eyesdemand for multi-functionscommunicate with sizequality be put into the marketdesign clockbagan a new research project specialized in madufacturingTCL Cell PhoneTCL Mobile Communication Co.,Ltd.is