不及物动词
1. I used to trade at that store.
过去我常在那家商店买东西。
2. If you don't like your book, I'll trade with you.
如果你不喜欢你的书，我和你对换。
名词
1. He got these eggs as a trade.
他交换到这些鸡蛋。
2. He is a blacksmith by trade.
他是个铁匠。
3.
3. Japan does lots of trade with the United States.
日本与美国间的贸易频繁。