switch exchange 区别

switch exchange 区别 exchange和switch的分别? switch 英语翻译exchange of proximity switch against light curtain请问这里against是什么意思? exchange exchange Exchange we made a(n) .to play basketball when it started to raina.turn b.switch c.point d.exchange we made a(n) .to play basketball when it started to raina.turn b.switch c.point d.exchange switch foods pegged exchange exchange是什么意思 Exchange是什么意思, exchange是什么意思? exchange是什么意思? 英语翻译A structural shift in the international financial architecture can be traced to the 1970s with the breakdown of the Bretton Woods system in the 1970s and the subsequent switch to floating exchange rates.The collapse of pegged exchange rat exchange for 和 exchange off 的区别exchange of exchange student 和exchange program的 译文