Why doesn't it fly apart under the coulomb repulsion of like - charge elements?为什么它不在同类电荷元的库仑排斥作用下散开 呢 ?Exciton is electron - hole pair held together by their mutual Coulomb interaction.激子就是由电子和空穴在相互间的库仑力作用下,相互维持在一起...

I slowly zipped and locked the heavy black nylon bags.我慢慢地把那些沉重的黑色尼龙袋的拉链拉上并锁好。The front door is locked and all the windows are firmly shut.前门锁上了，所有窗户都关严了。He had even locked away all the videos of his previous exploits.他甚...

adj.粗鲁的，不礼节的...

气溶胶学...

cycloamination的音标：cycloamination的英式发音音标为：[sɪkləʊmɪ'neɪʃn]cycloamination的美式发音音标为：[sɪkloʊmɪ'neɪʃn]...

This hillock is only ten feet higher than the horizontal land.这个土岗只比平地高出一丈多.They leveled the hillock to flat ground and began to grow crops.他们削平了乱土岗,开始种庄稼.The children are playing on the hillock.孩子们正在小土堆上玩....

n.狐蝙蝠...

美沙洛尔...

裂头绦虫病...

The teacher clomped into the classroom.老师喀喀地走进了教室....

hydroencephalomeningocele的音标：hydroencephalomeningocele的英式发音音标为：[haɪd'rəʊnkefələʊmenɪŋ]hydroencephalomeningocele的美式发音音标为：[haɪd'roʊnkefəloʊmenɪŋ]...

n.细胞生理学...

n.水果布丁...

downloading的音标：downloading的英式发音音标为：['daʊnləʊdɪŋ]downloading的美式发音音标为：['daʊnloʊdɪŋ]...

flower的音标：flower的英式发音音标为：['flaʊə(r)]flower的美式发音音标为：['flaʊɚ]...

n.砌块墙，预制砌块体，大方块...

Even his closest advisers believe he should hang back no longer.即便是和他关系最密切的顾问都认为他不应该再拖下去了。He was once regarded as one of Mr Brown's closest political advisers.他曾一度被视作布朗先生最为亲信的政治顾问之一。As a little girl, Karan was close...

slopes的音标：...

hemlock的音标：hemlock的英式发音音标为：['hemlɒk]hemlock的美式发音音标为：['hemlɑk]...

We ought not to sit in judgment on our fellowmen.我们不应该批评别人.For thirty years now I have been studying my fellowmen.三十年来,我一直在研究我的人类同胞,但至今了解不多.To which of his fellowmen might a discerning world point as Man of the Year?今年有眼...

She's a Londoner of mixed parentage (English and Jamaican).她是个混血（英国和牙买加）伦敦人。Her accent betrays her a Londoner.她的口音说明她是伦敦人.The Londoner lives neighbo ( u ) rless.那个伦敦人孤独地生活着....

wallow的第三人称单数（三单）为：wallows...

holomycin的音标：holomycin的英式发音音标为：[hɒləʊ'maɪsɪn]holomycin的美式发音音标为：[hɒloʊ'maɪsɪn]...

dislocation的音标：dislocation的英式发音音标为：[ˌdɪslə'keɪʃn]dislocation的美式发音音标为：[ˌdɪslo'keʃən]...

carloads的音标：...

locate的一般过去时为：located...

n.犰狳( armadillo的名词复数 )...

vi.（指书、戏剧等）彻底失败，（因疲惫而）猛然坐下，（笨拙地、不由自主地或松弛地）移动或落下，砸锅vt.笨拙地抛下n.失败adv.扑通一声...

球花分苷...

n.流石...