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...
The song hovered, like a whispered benediction, above the crowd.歌声缭绕在人群上方，如同低声祝福。The minister pronounced the benediction.牧师做了赐福祈祷。The Pope's hands were raised in benediction.教皇举起手来祝祷。...
现在夫妻双方分别按各自的收入纳税。Husband and wife are now taxed separately on their incomes.他按铃叫保安放他出去。He rang for the guard to let him out.利息按月支付。提款须提前3个月通知银行。Interest is paid monthly. Three months' notice is required for withdraw...
To apply engineering Methods : To the study of astronaut adaptation to weightlessness.应用 工程方法 于宇航员在无重状态下的适应性研究.The astronauts are conducting a series of experiments to learn more about how the body adapts to weightlessne...