圆盘产生自己的引力拖曳，这种相互作用的力夺走了行 星在其轨道上的动量，迫使它盘旋向恒星的方向。

The disk exerts its own gravitational tug, and this interplay of forces robs the planet of momentum in its orbital path, forcing it to spiral in toward the star.

youdao

讨论过渡小泡以及顺行和逆行转运的作用。

Discuss the role of transition vesicles, and anterograde and retrograde transports.

youdao

我传一个X，之后我把返回值赋值给，很明显，这一行代码，将会产生什么作用？

X I'm passing an X, and yet I'm also assigning the return value to X. so just intuitively what's going to be the effect of this one line of code?

youdao

I'm simply saying swap X with Y, but this 2 won't work, because where are X and Y defined?

我只简单地说交换X和Y，但是这两行不起作用，因为X和Y是在哪里定义的呢？

哈佛公开课 - 计算机科学课程节选