before and after中文什么意思

前后

凶杀后

• before:    adv. 1.在前，在前方，在前头， ...
• after:    adv. 在后；继后；后来。 fol ...
• before after:    只要你爱我

例句与用法

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1. A replica technique is used to record the scratch patterns before and after loading .
   可采用一种复制技术把在加载前后的划痕图案记录下来。
2. She was poor, quite alone, and had had a hard time in london, both before and after her husband died .
   她贫穷，相当孤单，在她丈夫生前生后，她曾在伦敦过着艰难的生活。
3. Tariff of aquatic products before and after entering wto
   入世前后的水产品关税
4. Drink a glass of water before and after your walk .
   步行前后都要喝一杯水。
5. The family changes before and after 1911 revolution
   辛亥革命前后的家庭变动