coating

1. N-COUNT A coating of a substance is a thin layer of it spread over a surface. 塗層

Under the coating of dust and cobwebs, he discovered a fine French Louis XVI clock. 在一層灰塵和蜘蛛網(wǎng)下麪，他發(fā)現(xiàn)了一個(gè)精美的法國(guó)路易十六時(shí)期的鍾。