The path of true love is not smooth.

真正的爱情之路是不会平坦的。

youdao

But the learning process is not smooth.

但学习的过程并不是很顺利。

youdao

Whose way is not smooth, as long as it is their choice of road, there will be no regret.

没有谁的路是一帆风顺，只要是自己选的路，就不能后悔。

youdao

Warhol used a very smooth painting method so the artwork almost did not look hand-made.

VOA: special.2010.09.05

Fred Barnes, editor of The Weekly Standard magazine "Obama,while a glib and smooth speaker, is not particularly persuasive,"

VOA: standard.2009.09.02

It is not normal to have just a smooth, easy ride through a World Cup qualifying.

VOA: standard.2009.06.07

Be sure your business card is plain on the back and not smooth to allow you to write on it.

FORBES: Create a Healthy and Prosperous Business

Both of these fossils suggest such transitions are not smooth, simultaneous transformations of all bodily features from old to new.

ECONOMIST: How new groups of creatures emerge

As I understand it, the DSG or "dual-clutch" transmissions on VWs, while not smooth as silk in their operation, are mechanically solid.

WSJ: Me & My Car: What's the Best Tire Pressure for a Saab?