偶联反应

chain reaction (chemistry)

accidental / image / pair / mate

to ally / to unite / to join / (poetry) antithetical couplet

contrary / in reverse / inside out or upside down / to reverse / to return / to oppose / opposite / against / anti- / to rebel / to use analogy / instead / abbr. for 反切[fan3 qie4] phonetic system

to react / to respond / reaction / response / reply / chemical reaction / CL:個|个[ge4]

surname Ying / Taiwan pr. [Ying4]

to agree (to do sth) / should / ought to / must / (legal) shall

to answer / to respond / to comply with / to deal or cope with