I hear he can swim freestyle, side stroke and breaststroke very well.我听说他自由泳 、 侧泳和蛙泳都游得非常好.Sometimes I use breaststroke, backstroke, and free style.有时游蛙泳 、 仰泳和自由泳.New Breaststroke is a series of loading and unloading of ...
The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine.以低含氢硅油 、 不饱和聚醚 、 一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油.Amphoteric monomer is prepared with acrylic acid , dimethyl...
On beaches, keep your camera safe from sand by enveloping it inside a plastic bag.在沙滩上时，将相机用塑料袋包裹起来以防止进沙子。She turned drowsily on her side, a slow creeping blackness enveloping her mind.她半睡半醒地翻了个身, 一片缓缓蠕动的黑暗渐渐将她的心包围起来.On ...
The production of cold involves the production of liquefied gases.冷量生产涉及到液化气的生产.It is best fit for pouring liquefied gas bottle, inversing bottle and adding gas for motorcar.该泵最适合于液化气瓶的罐装、倒罐及汽车燃料加气.Oxygen obtained from l...
Mammals arose from a fairly primitive reptile in the Mesozoic era.哺乳类起源于中生代宛若原始的爬虫类.Danba area has undergone multiperiod deformation, metamorphism and magmatism since Mesozoic time.丹巴地区自中生代以来经历了多期的变形 、 变质和岩浆作用.The deposi...
Due to carelessness, his head hit the doorframe with a loud bang.他不小心把头撞到了门框上,一声钝响.Mother held on to the doorframe and almost fell.母亲手扶着门框,几乎跌倒.He flushed the bottom of the doorframe.他把门框的底部调到水平状态....