hum是什么意思 n. 嗡嗡声, 哼声, 杂声vi. 发低哼声vt. 哼, 用哼声表示interj. 哼, 嗯 n. a humming noisev. sing with closed lipsv. be noisy with activityv. sound with a monotonous hum hum的用法和例句: 1. You were humming this under your covers. 你在被子下面哼这...