sⅰng的过去式: sang /sæŋ/Don't butcher that song by singing off key .别唱走调而糟蹋了那首歌。No one makes singing stocks from a big log .没有人用大圆木做击棒啊。She can 't sing . so do n't press her to ..她不会唱歌，就别难为她了。She will sing if we put the pressure on .我们给她些压力她就会讲出来。The boy sat on the perch and sang lustily .那个男孩坐在高处起劲地唱。