名词中文翻译1
中文翻译：Unknown
同义词：
['1. inefficient 2.ineffective 3. inadequate']
例句：
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1.The farmer used an ineffective tiller to clear the field.
农民使用一个无效的犁来清理田地。
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2.The old man's ineffective tiller was causing him a lot of trouble.
老人的无效犁使他遇到很多麻烦。
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3. The new machine is much more effective than the old one, making it an inadequate substitute for the old one.
新机器比旧机器更有效，因此它不能作为旧机器的替代品。