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...

To Ellen, mares never foaled nor cows calved. In fact, hens almost didn't lay eggs.对于爱伦来说, 母马从不下驹儿,母牛从不产犊儿,当然, 母鸡也几乎是不生蛋的.Well, as to why I'm not riding today, Nellie foaled early this morning. "唔, 至于说到我今天怎没骑马,...

v.长声尖叫，用长而尖锐的声音说( squeal的过去式和过去分词 )...

The armed forces were on high alert to guard against any retaliation.武装部队保持高度戒备，以防发生任何报复行动。The bank is alert to the danger.银行充分意识到了危险。All the Plymouth hospitals are on red alert.普利茅斯所有的医院都处于紧急状态之中。...

Caytoniales的音标：...

maleoyl的音标：maleoyl的英式发音音标为：[məli':əʊɪl]maleoyl的美式发音音标为：[məli'oʊɪl]...

inhale的音标：inhale的英式发音音标为：[ɪn'heɪl]inhale的美式发音音标为：[ɪn'hel]...

hypoadrenalemia的音标：hypoadrenalemia的英式发音音标为：[haɪpəʊdrenə'li:mjə]hypoadrenalemia的美式发音音标为：[haɪpoʊdrenə'limjə]...

finale的反义词有：prelude, prelude。n.finale的反义词（结局;终场）：prelude。finale的反义词（其他释义）：prelude。...

...a baleful look.恶毒的眼神Clearly, more and more baleful attack are come from lawful calculable website.显而易见, 越来越多的恶意攻击源自合法可信赖的网站.Recently, 360 safe centers are mixed again and again by baleful attack calumniatory.最近, 360安全...

Ceramiales的音标：...

adj.二价的...

whale的现在进行时为：whaling...

calender的一般过去时为：calendered...

salesgirls的音标：...

a stalemate over economic union关于经济联盟的僵局a stalemate in the peace process和平进程中的僵局The stalemate in the trade talks continues.贸易谈判的僵持仍在继续.He said the war had reached a stalemate and that a political accord was the only solu...

n.刻度( scale的名词复数 )，水垢，比例（尺），鱼鳞...

n.廉价...

n.真菌共生者...

equivalents的音标：equivalents的英式发音音标为：[ɪk'wɪvələnts]equivalents的美式发音音标为：[ɪk'wɪvələnts]...

v.盘旋上升（或下降）( spiral的过去式和过去分词 )，（物价等）不断急剧地上升（或下降）...

凤梨目...

malediction的音标：malediction的英式发音音标为：[ˌmælɪ'dɪkʃən]malediction的美式发音音标为：[ˌmælɪ'dɪkʃən]...

n.夜莺...

可锻性...

油藓目...

stale的一般过去时为：staled...

Tweeddale的音标：...

[医] 脑水肿...

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...