Grammar Note
不可数名词
贸易；交易；买卖
tradings — plural of trading
先理解核心含义，再看它在真实句子里的用法。
贸易；交易；买卖
trading
The trading of rare books is a small but active market in this city.
稀有书籍的贸易在这个城市是一个虽小却活跃的市场。
进行贸易
The carrying on of trade.
After years of trading, the two companies agreed to merge.
经过多年的交易，这两家公司同意合并。
She made a fortune through online trading of stocks and bonds.
她通过股票和债券的网上交易赚了一大笔钱。
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不可数名词
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY, WORDNET.