1. 名詞
   不可數名詞: 貿易, 交易
   

   同義字詞
   back-and-forth,barter,commutation,dicker,exchange,quid pro quo,swap,trade-off,truck
   art,craft,handcraft,handicraft
   calling,employment,game,line,occupation,profession,vocation,work
   business,commerce,marketplace,traffic
   deal,sale,transaction
   

2. 動詞
   trade現在分詞:
   不及物動詞:
   交易
   進行買賣
   從事貿易
   營業
   做主顧
   及物動詞:
   交易...(股票、商品等)
   買賣...(股票、商品等)
   

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   同義字詞
   deal,traffic
   change,commute,exchange,shift,substitute,swap,switch
   

例句

1. That would constitute insider trading .
2. Thus trading becomes less easy and sure.
3. Some claim it's all there is to trading .
4. What does delta mean to options trading ?
5. Trading standards officers offered this advice.
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