1. 形容詞
   無效率的, 效能差的
   效率低的
   無能的
   不稱職的
   inefficient in ...(事物):
   在...方面無效率的
   在...方面效能差的
   在...方面效率低的
   inefficient at ...(動詞ing ...):
   在做...上無效率的
   

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   同義字詞
   counterproductive,feckless,hamstrung,ineffective,ineffectual,inefficacious,inexpedient
   

例句

1. This was deemed very inefficient .
2. What a wasteful, inefficient economic system!
3. No doubt the production is very inefficient .
4. Both bills were poorly designed and inefficient .
5. The current tax code is bloated and inefficient .
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