彻底刷牙有助于口气清新。A thorough brushing helps to freshen up your mouth.空气稀薄清新，其间日光蒙眬，寒气逼人。The air was thin and crisp, filled with hazy sunshine and frost.她的房子光线充足，空气流通，清新整洁。Her house is light and airy, crisp and clean....
Marie Curie’s remains were exhumed and interred in the Pantheon.玛丽·居里的遗体被移出葬在先贤祠中。At last came the day when Marie Curie was almost at the end of her efforts.这一天终于来临了,玛丽-居里的努力快见成效了!A metal called uranium gave off a kind o...
This machine is a ~ of energy economization.这台机器是节约能源的样板.The design basign bases on the principle of precision, economization, security and reliability.设计中本着精确 、 经济 、 安全和可靠的设计原则....