The barb stung her exactly the way he hoped it would.如他所愿，这句带刺的话刺痛了她。He's a sensitive lad and some of the criticism has stung him.他是个敏感的小伙子，有些批评刺痛了他。She burst into tears, stung by the harshness of his words.他那番严厉无情的...
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...