smoothest
平稳的
顺利的
安详的（smooth 的最高级）
例句
Manipulator bosses are the smoothest of bullies.
控制者是恶霸中最圆滑的。
The fastest and smoothest elevators in the world.
世界上最快最安稳的电梯。
It's already the smoothest frosting I have ever done in my short baking life.
它已经流畅结霜我永远做我的短烘烤生活。
