动词搭配 “work out” 的意思是 “锻炼身体”，也就是指通过体育锻炼来达到强健体魄、减重等目的。比如，“to work out in the gym” 就表示 “在健身房锻炼”。

• She liked to work out in the gym after work.
  她喜欢下班后去健身房锻炼身体。
• He wanted to lose weight so he started working out.
  他想要减重，所以开始锻炼身体了。
• I'm always tired after I work out.
  每次锻炼后我都精疲力竭。