You won't see muscle definition or a nice six-pack despite how many crunches you do, because of the layer of fat resting on top of your muscles.

不管你做多少仰卧起坐，你都不会看到清晰的肌肉轮廓或漂亮的六块肌，因为你的肌肉上有脂肪层。

youdao

And the first crack was a movie that's so long that it used to be the janitors, the people who cleaned these-- the very nice people who cleaned these rooms used to call it a two six-pack movie because it was so long.

第一个漏洞是一部特别长的电影,以前那个楼管,打扫卫生的,给这些教师打扫卫生的优秀工作者,以前管它叫一打啤酒电影因为太长了

耶鲁公开课 - 1871年后的法国课程节选