物物交换

barter

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

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

thing / object / matter / abbr. for physics 物理

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