v.唱(歌),演唱;鸣,啼;用诗(或歌)赞颂,歌颂;呜呜作响;发嗖嗖声;易上口吟唱;感到欢乐;<古>作诗;<口>招供,自首
n.呜呜声;嗖嗖声;〈美口〉歌唱会;<口> 唱歌,演唱
第三人称单数:sings现在进行时:singing过去式:sang过去分词:sung派生词:singn.
Do sing along if you know the words.
要是知道歌词,你就跟着唱吧。
I'll sing if I want to ─ there's no law against it.
我想唱就唱——谁也管不着。