形容词
中文翻译:无效的
同义词:
['inoperative', 'ineffective', 'nonfunctional例句:1. The medicine is only valid for a week.(这药只能有效一周。)2. The machine is invalid due to the malfunction.(这台机器因为故障而无效。)3. The plan is invalid because of the sudden change in weather conditions.(由于天气条件突然变化,这个计划是无效的。)']
例句:
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1. The medicine is only valid for a week.
这药只能有效一周。
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2. The machine is invalid due to the malfunction.
这台机器因为故障而无效。
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3. The plan is invalid because of the sudden change in weather conditions.
由于天气条件突然变化,这个计划是无效的。