Receding gums can be the result of disease or simply incorrect brushing.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。Thoroughly brush teeth and gums twice daily.每天两次彻底刷净牙齿和牙龈.A bad tooth may cause an abscess on the gums.一颗病牙可使牙床脓肿....
Do we really have to invite all my insufferable relatives to the wedding?我们真得请我那些叫人难以忍受的亲戚们来参加婚礼吗?He denounced the decision to invite his fellow archbishop to preach.他痛斥了邀请其他大主教同仁布道的决定。They haven't got an invite to ...
比利时杯被夺冠热门列日队夺得。The Belgian Cup has been won by the favourites F.C. Liege.希伯尼安队以2比0战胜汉密尔顿队，夺得了甲级联赛的冠军。Hibernian clinched the First Division title when they beat Hamilton 2-0.克里斯蒂在100米赛中夺得金牌。Christie took the gold medal in...
The engine had a broken crankshaft.发动机的曲轴断了。The camshaft rotates in phase with the crankshaft, but at half its speed.凸轮轴和曲轴协调旋转, 但速度仅是曲轴的一半.When the gears are engaged, the crankshaft keeps the car moving.而曲轴,在齿轮箱挂挡时, 又使汽...
The noise, the buildings, the people, came as a revelation...这里的噪音、建筑物和人都令人出乎意料。Degas's work had been a revelation to her.德加的作品曾经让她大开眼界。...the revelation that William had survived the initial attack.威廉在首次袭击中幸存下来的惊人内...