Conclusions Fluoride mouth rinse can effectively prevent and enamel decalcification in fixed - orthodontic treatment.在固定正畸治疗中,含氟漱口液能有效防治牙釉质脱矿.There was a moose head on the wall. Some wag had put a cigarette in its mouth....
A thorough brushing helps to freshen up your mouth.彻底刷牙有助于口气清新。His mouth was a little open, as if he'd started to scream.他的嘴微微张开,似乎是要开始尖叫.I've always had a loud mouth, I refuse to be silenced.我一贯大声说出自己的想法，不会迫于压...
然后他抽了抽鼻子，发觉有一股烧焦的味道。Then he sniffed. There was a smell of burning.被烧焦的轿车残骸the charred remains of a burnt-out car我母亲闻到什么东西烧焦的味道.My mother can smell burning....