coals 是 coal 的複數coalKK [ˋkol] /ˈkoʊl/名詞1煤、煤炭The power plant still burns coal to generate electricity.那座電廠仍然燒煤來發電。2煤塊、炭塊常用複數We cooked the steaks over glowing coals in the yard.我們在院子裡用燒紅的炭塊烤牛排。動詞1加煤、添煤舊式The steamship stopped at the port to coal before the long voyage.那艘蒸汽船在長途航行前靠港加煤。