使用者中介

user agent

to make / to cause / to enable / to use / to employ / to send / to instruct sb to do sth / envoy / messenger

to use / to employ / to apply / to make use of

to use / to employ / to have to / to eat or drink / expense or outlay / usefulness / hence / therefore

user

(after a verb or adjective) one who (is) ... / (after a noun) person involved in ... / -er / -ist / (used after a number or 後|后[hou4] or 前[qian2] to refer to sth mentioned previously) / (used after a term, to mark a pause before defining the term) / (old) (used at the end of a command) / (old) this

China / Chinese / surname Zhong

within / among / in / middle / center / while (doing sth) / during / (dialect) OK / all right

to hit (the mark) / to be hit by / to suffer / to win (a prize, a lottery)

to act as intermediary / to link / intermediate / inter- / agency / agent

to introduce / to lie between / between / shell / armor