[正] Daddy painted the desk with a coat of paint.
注：layer 和 coat，虽然翻译成中文都是“层”，但用法却不同。如：Onions have layers(洋葱是一层一层的)，但涂上一层油漆却要用 coat。
A layer of smog settled over the city.
The cake has three layers.
These seeds must be covered with a layer of earth.
A layer of ice on the street.
You must put another coat of paint on this door.
Two coats of painting were needed to cover the old colour.
A coat of dust