Don't worry if this first coat of paint looks messy.

如果这第一层油漆看上去有点脏的话，不用担心。

《柯林斯英汉双解大词典》

The blue first coat bled into the white.

第一层蓝色渗入了白色涂层。

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Directly after the surface pretreatment, the first coat must be applied.

在对表面进行过预处理后，必须立即进行第一层涂层的涂覆。

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This was the day I could at last wear my new shoes and my first new coat.

BBC: A kick for teacher

To preserve them for more than a billion years to make fossils out of ephemera a site first has to coat its remains in a fixative: a thin layer of waterproof sediment that will slowly harden into stone.

NEWYORKER: The Martian Chroniclers

First out was a plaid coat with a trench-style collar, oversized pockets and small rectangular cutouts.

WSJ: NY Fashion Week: tough, tailored, lots of black