你可以付费升级到商务舱。You can pay to be upgraded to a business class seat.有报道称萨尔瓦多的战斗已经升级。There are reports of stepped-up fighting in El Salvador.您可以将自理膳食旅店升级为酒店。You can upgrade from self-catering accommodation to a hotel....
Tritium is one of the mildest radioactive isotopes.氚是最和缓的放射性同位素之一.More reactive are the heavier isotopes of hydrogen, deuterium and tritium.更为活跃的是氢的较重同位素, 氘和氚.Tritium has a half - life of 12.4 years.氚的半衰期为12.4年,地球形成时的氚早已...
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....
There was no doubting the animal magnetism of the man.毫无疑问,这个男人身上透着一种野性魅力。There is no doubting them now.现在无法怀疑他们。I am a dark, self - destructive, happiness - doubting, unforgivable man.我是个阴郁, 自我 毁灭, 怀疑快乐, 不可饶恕的人....
用现金或实物支付我们都接受.We accept payment in cash or in kind.一些消费者更注重商品或实物的实际使用价值.Some consumers pay more attention to the actual value of goods or in kind.采购是奥组委通过购买或实物赞助形式获得物资的过程.Procurement is the process of obtaining goods by ...