动词 “sweat” 的意思是 “流汗”，而包含 “sweat” 的表达 “sweat it out” 的意思是 “做高强度的运动锻炼身体”，这种运动锻炼往往让人 “挥汗如雨”。“Sweat it out” 多用在非正式的口语交流中。

• My boyfriend used to hate exercise, but now he really likes to sweat it out in the gym for a few hours a week.
  我的男朋友过去很不喜欢运动，但现在他真的很喜欢每周去健身房里做几个小时高强度的运动锻炼。
• Thousands of people sweat it out at the London Marathon every year.
  每年都有成千上万名参赛者在伦敦马拉松赛上挥汗如雨。
• My friend and I tried a new dance class last night – we really sweated it out! It was so hard!
  我和我朋友昨晚上了一门新的舞蹈课。我们真是累坏了！舞蹈动作好难！