froth

泡沫，泡；口沫英释中释na mass of small bubbles on the top of a liquid

吐白沫；起泡沫英释中释vif a liquid froths, it produces or contains a lot of small bubbles on top

1 froth flotation,浮选；泡沫浮选

1 ‘Excellent beer,’ he said, wiping the froth from his mouth..“好啤酒。”他擦去嘴边的泡沫说道。