/smu:ð ||; smuð/adj1 having a completely flat surface with no lumps or holes or rough areas 平滑的；光滑的: smooth skin 光滑的皮肤a smooth piece of wood 光滑的木块 [OPP] rough 反义词为rough
2 (of a liquid mixture) without lumps （液体混合物）没有团块的: Stir the sauce until it is smooth. 将调味汁搅匀。 [OPP] lumpy 反义词为lumpy
3 without difficulties 没有困难的；顺利的: The transition from the old method to the new has been very smooth. 从旧方法转变到新方法一直很顺利。
4 (of a journey in a car, etc) with an even, comfortable movement （指行车等）平稳前进的: You get a very smooth ride in this car. 这辆汽车行车平稳，一路上你会很舒适。 [OPP] bumpy 反义词为bumpy
5 too pleasant or polite to be trusted 过分圆滑的（以致不可信）
☞We use this word in a critical way, usually about a man I don't like him. He's far too smooth. 这个词用于批评，通常指人：I don't like him. He's far too smooth.我不喜欢他，他这个人太圆滑。 ➔smoothness noun [U] take the rough with the smooth→
ROUGH²