gum

/gʌm/

n. 树胶, 橡皮, 橡皮糖, 牙床, 老天；vt. 涂以树胶, 用胶粘, 使有粘性；vi. 分泌树胶, 发粘

英释：n. any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but ha...

词形：过去式 gummed；过去分词 gummed；现在分词 gumming；三单 gums；复数 gums