Work out: I always work out in the morning because the gym is quieter at that time.
锻炼：我总是在早晨锻炼，因为那个时候操场更安静。
burn off: I want to burn off some of those calories I ate last night.
燃烧掉：我要燃烧掉昨晚我吃了的一些卡路里，。
work off: I have a lot of stress from my job, so the gym is a good place to work it off.
工作过：我工作压力很大，需要锻炼来减压。
warm up: She forgot to warm up before her exercise class and, she injured her back.
热身：她忘了她的锻炼课前要热身，回来的时候她已经了受伤。
cool down: I didn't cool down after my run, and, because I was all sweaty, I caught a cold.
放松：我忘了要在锻炼后放松，而且，因为全身是汗，我感冒了。
give up: Even when I feel exhausted after twenty minutes of jogging, I never give up.
放弃：即使我觉得20分钟慢跑后已经觉得精疲力竭，我从来没有放弃。
I always try to make thirty.
我总是尽量跑到三十分钟。
stick to it: My routine is quite hard but I want to stick to it so I look good for my vacation.
坚持下去：我的过程是很辛苦，但我要坚持下去，所以我看好了我的假期。
be into: I'm really into my gym instructor. He's so cool!
喜欢：我真喜欢我的健身教练。他太酷了！