实战口语情景对话 第1280期:How many times do you exercise a week? 你每周锻炼几次?

重点讲解：
1. depend on 取决(于)；有赖(于) ；
例句：Be aware that the length of time needed to complete the tests will depend on the size of your databases.
请注意，完成测试所需时间的长短取决于数据库的大小。
2. at least （数量）至少，不少于；
例句：Research has proved that modest aerobic exercise at least 3 times a week improves the quality of sleep.
研究证实，每周至少进行三次适度有氧运动有利于良好的睡眠。
3. like to do sth. 喜欢做某事；
例句：None of the girls like to go out on a date with him because he is a cheap skate.
没有女孩喜欢跟他约会，因为他是个吝啬鬼。
4. be good for 有利的；有益的；
例句：Cucumber is good for soothing tired eyes.
黄瓜有助于舒缓眼部疲劳。