牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。When not removed, plaque causes tooth decay and gum disease.牙齿和牙龈之间会滋生牙斑。Deposits of plaque build up between the tooth and the gum.需刷牙以去除牙斑.It is necessary to remove plaque by brushing one's tee...
People are sprawled on makeshift beds in the cafeteria.人们懒散地躺在食堂里搭起的临时床铺上。The latest refugees were housed in makeshift dormitories.新来的难民被安置在临时的集体寝室里。A few cushions formed a makeshift bed.临时用几个垫子拼了一张床。...
The company's bicentenary was in 1974.一九七四年是这公司成立二百周年.Do you have the memorial postage stamps for the bicentenary?还是你有二百周年的纪念邮票 吗 ?The town will have its bicentenary next year.该城的二百周年纪念日明年即将到来....
She looked ravishing.她看起来漂亮极了。The film is ravishing to look at and boasts a sensuous musical score.这部电影画面迷人，配乐悦耳动听。Manya and Hela wanted to be especially ravishing that night.那天晚上玛尼娅和海拉想打扮得特别漂亮....
Always for it is an outstanding freeware public domain software.总来说是一款优秀免费软件.This Game is Freeware and screened for maximum quality by Illusion Software!此游戏是免费和筛选,最高质量的幻想软件!This utility is released as freeware for person...
There was a whine of hydraulics as the undercarriage locked into position.随着液压系统嘎吱一声响，起落架进入了锁定位置。The undercarriage on light aircraft does not always retract in flight.轻型飞机飞行时起落架不一定缩回.A kind of cutter undercarriage mechan...