这里我要强调的是在你的生活中去找出一段完全没有杂音的时光，将自己置于一种不允许被非自然的外部力量消极影响生活的境地。

What I am stressing here is to find time in your life to be without noise. Put yourself in a position that does not allow unnatural outside forces to negatively affect your life.

youdao

和平滑的圆柱形传统针头不同，这种针头的外部是两段锯齿条，中空的部分可以在锯齿条之间滑动。

Unlike the flat cylindrical tubes of traditional needles, two serrated shanks form their needle's exterior, while a central shaft slides between.

youdao

而且这也将是全球第一次处理追溯过去很长一段时间的外部成本。

And it will be the first time the globe has tackled the question of externalities over a long time period.

youdao