I use it most commonly for adjusting the line weight in sketches to call attention to the things that matter most.

我最常用的是调整草图线条的粗细，来凸显最重要的部分。

youdao

Heels not only have to be the right height but in the right position: not too far back, but under the centre of the heel so they support your weight properly, following the natural line of your body.

鞋跟不仅要有一个合适的高度，也需要在正确的位置上：不能太靠后，要在脚后跟的中心，这样的鞋跟才能沿着你的身体曲线有效地支持你的体重。

youdao

The next line says if the weight of i is greater than a w, well then I know I can't put it in.

下一行说的是,如果i的重量比a，w大，好吧，我知道我不能把它放进去。

youdao

The next line says if the weight of i is greater than a w, well then I know I can't put it in.

下一行说的是,如果i的重量比a，w大，好吧，我知道我不能把它放进去。

麻省理工公开课 - 计算机科学及编程导论课程节选

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