把疖子切开是很痛的。It is a painful experience having the boil lanced.诺尔曼切开自己的派，往里面挤了点番茄酱。Norman cut open his pie and squirted tomato sauce into it.将菠萝对半切开，挖出里面的果肉。Halve the pineapple and scoop out the inside....
不断有人要求他出面解决冲突。Frequently he was called upon to resolve conflicts.双方由民间团体出面商谈贸易.Trade talks are to be held by nongovernmental organizations of both sides.领导们力劝人们集体出面反对暴力。Leaders urged people to turn out in large numbers t...
The most common causes are aortic or pulmonic valve regurgitation.最常见的原因是主动脉瓣或肺动脉瓣反流.Feeding too rapidly will cause abdominal distension and regurgitation.喂得太快会引起腹胀和反流.The valvular regurgitation did not affect cardiac st...