barter的解释
n. 物物交换,实物交易
v. 物物交换,交换
barter的例句
The prisoners tried to barter with the guards for their freedom.
囚犯们企图和看守做换取自由的交易。

On these islands a system of barter is used.
在这些岛上仍然实行着物物交换的制度。