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....
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....
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...