A few more traveler's checks may come in handy on holiday.多带几张旅行支票,度假时会有用的.Dying of thirst, the desert traveler ground out a request for water.这个沙漠旅行者几乎要渴死了, 嗓音沙哑地说要喝水.With the aid of a compass the traveler can find...
在过去10年中，洁面乳、面霜以及发胶的销售已经增长了一倍。Sales of cleansing milks, creams, and gels have doubled over the past decade.许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.Many groups can be added by nucleophilic substitution on a diazonium salt.这些不稳定性促使琼脂糖和琼脂...
The video was seven minutes of high camp and melodrama.那段录像里是7分钟极尽夸张搞笑的闹剧表演。The rebels attempted a surprise raid on a military camp.叛军试图突袭一处军营。At dusk we pitched camp in the middle of nowhere.黄昏时，我们在茫茫荒野中扎营。...
This paper discussed three methods of producting vinyl etherspreparation from acetylene, dehydrohalogenation and acetals.论述了乙烯基醚类化合物的三种主要制备方法乙炔法 、 脱卤化氢法和缩醛热分解法.Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一种异构体.In th...