Every skilled trade has its secrets — those little tricks, techniques, and tools that make light of even the most complex task.

每种技术性劳动都有其自身的秘密，这些小窍门、技巧和工具甚至可以处理最复杂的任务。

youdao

And ultraviolet light will interact with that little ball, the center of mass, and when I then make it dark, you will only see the motion of the center of mass.

这紫外线光可以，与小球互动，也就是质量重心，当周围暗下来，能看到质量重心运动。

youdao

Rays of the morning glow, penetrating the quaintly carved window lattice, little by little, put on a stroke of light make-up in golden yellow for the delicate potted landscapes in the courtyard.

晨光，透过古色古香的雕花窗棂，给庭院里精致的盆景慢慢地化上一抹金黄的淡妆。

youdao

It is the color of milk, with maybe just a little chocolate added to make it light brown.

VOA: special.2009.11.16

It's in this light that the introduction, I think, of Galileo in this simile starts to make a little more sense.

就此而论，这个比喻中，关于伽利略的介绍开始有了点意义。

耶鲁公开课 - 弥尔顿课程节选