英语词汇“hard and fast”的读音、翻译、释义、用法及例句-开邑网

词汇	hard and fast
释义	hard and fasthard and fast1.■(规则等)不能变通的, 不容更改的Our factory has a hard and fast rule against smoking.我们工厂严格规定不许吸烟。This distinction isn't hard and fast.这样的差别并非是一成不变的。
随便看	background measurement experiment background measurement radiometer background mode background modulation noise background monitor background monitoring background music background noise background-noise control background noise field strength background-noise level background noise of wind tunnel background noise photon background of water environment background paging background partition background photon fluctuations Background picture background planting background pollution background pollution observation background printing background print spooler Background Priority background process

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