这个港口城市因海上贸易而繁荣。

This port city thrives on maritime ___trade.

她决定学习电工这门手艺。

She decided to learn the ___trade of electrician.

我用我的旧玩具和他交换了一本漫画书。

I ___traded my old toy for a comic book with him.

这家公司主要经营电子产品。

The company mainly ___trades in electronic products.

今天的贸易数据显示市场有所回升。

Today's ___trade data shows a market recovery.