性交易

prostitution / commercial sex / the sex trade

nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:個|个[ge4]

sexual intercourse

to hand over / to deliver / to pay (money) / to turn over / to make friends / to intersect (lines) / variant of 跤[jiao1]

(business) transaction / business deal / CL:筆|笔[bi3]

to deal; to trade; to transact / transaction; deal / CL:筆|笔[bi3]

easy / amiable / to change / to exchange / prefix corresponding to the English adjective suffix "-able" or "-ible" / abbr. for 易經|易经[Yi4 jing1], the Book of Changes