Definition: having a regular surface that has no holes or lumps in it Level: B1
将黄油和糖混合直到顺滑。
Mix the butter and sugar until ___smooth.
前面的路又平又光滑。
The road ahead was flat and ___smooth.
这款面霜有助于保持皮肤光滑。
This cream helps to keep your skin ___smooth.
