Halogen bond is known as a kind of non - covalent intermolecular interaction.卤键是一种类似氢键的分子间弱相互作用.Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.化学键主要有离子键 、 共价键 、 金属键.Additionally, co...
In covalent bonding, atoms share electrons.在共价键联中, 原子共有电子.Crystals may be classified as either ionic or covalent by analogy with molecules.与分子的情况一样,晶体也可以分为离子键型和共价键型.Ceramics primarily have ionic bonds, but covalent bondi...
Mr Nicholson respects soldiers, and he rubs along with them.尼科尔森先生对士兵很尊重，而且跟他们相处融洽。She playfully rubs suntan lotion on his neck.她开玩笑地把防晒露擦到他脖子上。It rubs to be presided over by such a man.受这样的人管辖真是使人恼火....
In American football, you have to try to bring down your opponent.在美式橄榄球赛中, 你必须设法把对手弄倒在地.These dreadful people bring down the tone of the neighbourhood.这些讨厌的人败坏了这一地带的风气.First bring down his temperature.先给他退热再说....
Incoming non - conforming materials are segregated and separately identified to prevent inadvertent use.进货中的不合格品须隔离并加上标识以防止进一步使用.The dances were supposed to be string segregated.一般说来,对舞会要加以严格的区别.Police segregated the two...
我们被轻易地击败了。按理说我们本应该大败他们。We got whacked. On paper we should have wiped the floor with them.按理说你是不能走进这个房间的, 你知道 吗 ?这是专为此地工作人员使用的.You realize that by rights you should not come into this room, don't you? This is only fo...
The drum is one of the oldest musical instruments.鼓是最古老的乐器之一。When you beat the drum, you feel good.敲鼓的时候感觉很好。A long drum roll introduced the trapeze artists.长长的一阵紧锣密鼓声中迎来了高空秋千表演者。...