第三人称单数：stops up 现在分词：stopping up 过去式：stopped up
1.醒着,没有睡;熬夜;塞住(洞口)
2.同“stop”
1.if a sink or bathtub stops up, water will not empty out because the pipes are full of something that should not be there
2.Same as stop
stops upstops upstops up