| 单词 | before and after |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔after〕Wash your hands before and after meals.饭前饭后要洗手。文馨英汉〔bathrobe〕A loose-fitting robe worn before and after bathing and for lounging.浴衣，浴袍：一种宽松的袍子，在沐浴前后或休憩时穿美国传统〔both〕Now women work both before and after having their children.现在妇女在生孩子前后都要去工作。柯林斯高阶〔compression ratio〕In an internal combustion engine, the ratio of the volume between the piston and cylinder head before and after a compression stroke.压缩比：内燃机中，在压缩行程前后活塞到汽缸盖之间的容量比美国传统〔experimentally〕We have experimental and observational evidence concerning things which happened before and after the origin of life.有关生命起源前后发生了什么，我们通过实验和观察得出了一些证据。柯林斯高阶〔perishable〕Raw eggs are highly perishable and must be chilled before and after cooking.生鸡蛋非常容易变质，烹制前后必须冷藏。柯林斯高阶〔perishable〕Raw eggs are highly perishable and must be chilled before and after cooking.生鸡蛋极容易变质, 生熟都必须冷藏。外研社新世纪〔plenty〕Remember to drink plenty of water before and after you exercise.运动开始前和结束后，记得要多喝水。韦氏高阶〔tracksuit〕A loose-fitting jacket and pants worn by athletes and exercisers usually before and after workouts.田径服：由运动员及锻炼者穿的宽松的茄克衫和短裤，通常在运动练习之前和之后穿美国传统 |
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