勞務交換

labor exchanges

to toil / labor / laborer / to put sb to trouble (of doing sth) / meritorious deed / to console (Taiwan pr. [lao4] for this sense)

service (work done for money) / services (as in "goods and services")

affair / business / matter / to be engaged in / to attend to / by all means

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

to exchange / to swap / to switch (telecom) / commutative (math) / to commute

to exchange / to change (clothes etc) / to substitute / to switch / to convert (currency)