质子的质量几乎是电子的2,000倍。Protons are nearly 2000 times as heavy as electrons.质子是物质的基本粒子。A proton is an elementary particle of matter.中子和质子构成了原子核.The neutrons and protons form the core of the atom....
"Doctor McKee?" the man called in an even, sonorous voice.“是麦基博士吗？”那个男人用平稳而洪亮的声音喊道。" I've done some nice things out on Long Island, " asserted Mr. McKee.“ 我在长岛那边拍过几张好的. ” 麦基先生断言.'Doctor McKee?' the man cal...
My name is Richard Savage, your Lordship.尊敬的阁下，我叫理查德·萨维奇。His Lordship is away on business.爵爷有事出去了。His lordship will be out of country until next week.大人他下周才从国外回来....
在海鸥的栖息处的后方,是一座建于维多利亚时代的船库.Seagulls perch with a Victorian - era boathouse in the background.他们每年都会好几次用卡车载着相机,朝野马的栖息处驶去.Several times a year, the couple would load their cameras and head for mustang country.于是所有的母鸡都从栖息处走出...