点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
及物动词
不及物动词
1. 以物易物；交换（货物）If you barter goods, you exchange them for other goods, rather than selling them for money.
1. an equal exchange
e.g. we had no money so we had to live by barter
Synonym: swapswoptrade
多通过句子记忆单词，而不是单独死记硬背。
