undercoat
US /ˈʌn.dɚ.koʊt/
UK /ˈʌn.dɚ.koʊt/
名词
1.
底毛
a first layer of paint that is put on a surface in order to improve the appearance of the final one, or the paint used for this:
示例:
•
Those red walls will probably need two undercoats.
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