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.牙龈萎缩可能是疾病导致的，也可能仅仅是错误的刷牙方式引起的。Receding gums can be the result of disease or simply incorrect brushing.我牙龈脓肿，所以他就把那颗牙拔掉了。I got an abscess so...
现在不是怯懦的时候。This is no time to be faint-hearted.现在不是怯懦的时候。This is no time to be fainthearted.怯懦的人总是把满腹牢骚向温和的人发泄.Timid people always wreak their peevishness on the gentle....
"Ha, ha," everyone guffawed. "It's one of Viv's shock tactics."“哈哈，”所有人都大笑起来，“这是维夫的一招出奇制胜的战术。”Schulman is a little tired of the hoo-ha about the all-women team.舒尔曼有点厌烦了对全女子队的过度炒作。"Ha!" It was a cross between a ...
The clip and bracket of the extern flash must be taken down.必须中断外面闪光的夹子和托架.Suspending bracket design is able to avoid obstruction of venous reflux effectively.悬空支架式设计,能有效避免静脉回流受阻.Each bracket is fixed to the wall with ju...