The two policemen were joined by another policeman also carrying a pistol.另一名持枪警察和那两名警察会合了。He drew his pistol and aimed at the enemy soldier.他拔出枪对准敌兵.He gripped his pistol tightly, just in case.他握紧手抢, 以防万一....
质子的质量几乎是电子的2,000倍。Protons are nearly 2000 times as heavy as electrons.自由基是一种具有未配对电子的分子碎体.A free radical is a molecular fragment having an unpaired electron.在物质中的贯穿能力,都是和电子的动能E有关的.Penetration in matter depends on the kine...
It was said that washing powders containing enzymes remove stains more efficiently.据说加酶洗衣粉除污更有效.Honey is basically a compound of water, two types of sugar, vitamins and enzymes.蜂蜜基本上是水、两种糖、几种维生素和酶的混合物。Lysosomal enzymes a...
I'd like to know who's been messing about with the pram.我想知道是谁在瞎摆弄这辆婴儿车。Boys and girls will enjoy messing about with any kind of machine.男孩和女孩会喜欢摆弄各种机械装置。She was messing with the coffee pot, which was acting up...