smoothen sth
及物动词，后接宾语。
She smoothened the rough edges.
她磨平了粗糙的边缘。
使平滑；使光滑
使光亮；擦亮；变平滑；变得光滑。
make smooth or smoother, as if by rubbing
使光滑。
To make smooth.
变得光滑。
To become smooth.
一般现在时
She smoothens the surface with sandpaper.
她用砂纸把表面打磨平滑。
一般过去时
He smoothened the wood yesterday.
他昨天把木头打磨平滑了。
现在进行时
They are smoothening the edges now.
他们正在把边缘打磨平滑。
现在完成时
I have smoothened the table already.
我已经把桌子打磨平滑了。
She smoothens the wood with sandpaper before painting.
她涂漆前用砂纸把木头打磨光滑。
用法提示：使用第三人称单数形式smoothens，表示使表面光滑。
The carpenter smoothened the rough edges of the table.
木匠把桌子粗糙的边缘打磨平滑了。
用法提示：使用过去式smoothened，表示过去完成的使平滑的动作。
I am smoothening the clay to prepare it for the kiln.
我正在把粘土抹平，准备放进窑里烧制。
用法提示：使用现在分词smoothening，表示正在进行的使平滑的动作。
及物动词，后接宾语。
She smoothened the rough edges.
她磨平了粗糙的边缘。
不及物用法，主语为被平滑的事物。
The surface smoothens after polishing.
表面抛光后变平滑。
grammar · medium
易错句子The smoothen surface feels nice.
正确表达The smooth surface feels nice.
“smoothen”是动词，不能直接用作形容词。正确用法是使用形容词“smooth”或者过去分词“smoothened”作定语。
grammar · medium
易错句子He smoothen the wood yesterday.
正确表达He smoothened the wood yesterday.
“smoothen”是规则动词，过去式需加-ed，不能使用原形表示过去时。
smoothen仅作动词且少用；smooth可作形容词和动词，更常用
发音相似，但smoothen指使表面平滑，soothe指使情绪平静
拼写相似，但smoothen指使光滑，smother指遮盖或窒息
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