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.彩色玻璃板先经过蚀刻，然后用传统技法手工着色。The stained-glass panels are etched and then handpainted using traditional methods.避免使用磨蚀剂，以免损坏瓷砖。Avoid abrasives, w...
That city seems to be the hothouse of decadence.该城市似乎是堕落的温床....the reputation of the College as a hothouse of novel ideas.该学院享有的新思想摇篮的美誉Hothouse plants do not possess exuberant vitality.在温室里培养出来的东西,不会有强大的生命力。These plants...