It is impossible to give hard-and-fast rules, but here are some points to consider.首页 英汉 汉英 英英 词组 用法 例句 同义词 写作 俚语 缩写 词源 词根 法汉 德汉 日汉 俄汉 韩汉 西汉 意汉 泰汉 越汉
| 单词 | hard-and-fast |
| 释义 | hard-and-fastˌhard-and-ˈfast adjective [only before noun] clear, definite, and always able to be used: It is impossible to give hard-and-fast rules, but here are some points to consider. |
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