In reality job change is seldom so frictionless.

而实际上就业变化很少是这么一帆风顺的。

A perpetual motion machine would have to be frictionless.

永动机只能是一种无摩擦力的机器。

Links were considered infinitely rigid and joints frictionless.

链接被认为是无限的刚性和关节的无阻力。

They glide around too smoothly, with the frictionless ease of a cursor across a computer screen.

他们的动作过于流畅，就像光标那样轻松滑过计算机屏幕。

The only frictionless part of Web commerce, he quips, is people clicking away from a site they don't like.

他开玩笑说，电子商务惟一通行无阻之处就是人们可以一点鼠标就离开一个不喜欢的网站。