manganese peroxide二氧化锰The sample was molten and decomposed with sodium peroxide , leached and acidified hot water and - volumed.试样以过氧化钠熔融分解,热水浸取、酸化,定容.Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化...
在黑暗和嘈杂的声音中，婴儿饱受惊吓。The baby was filled with alarm at the darkness and the noise.他们被一阵嘈杂的敲门声吵醒。They were wakened by a loud knocking at the door.行李大厅拥挤嘈杂。The baggage hall was crowded and noisy....
As a group, today's old people are still relatively deprived.总的来说，当今的老年人依然相对贫困。We're taking relatively benign medicines and we're turning them into poisons.我们服的药相对来说药性温和，但是我们却在把它们变成毒药。This basic utilitaria...
难以想象人们将怎样熬过这个冬天。It is hard to see how people will get through the winter.他把红酒熬稠后再用。He boils down red wine and uses what's left.他们互相关心，关系牢固，这才熬过了艰难岁月。The warmth and strength of their relationship carried them through...
为了拿到前往哥伦比亚的签证，我们乘大巴返回麦德林。To get our Colombian visas we bussed back to Medellin.他们以为他们的亲戚们会把签证办好。They thought that their relatives would be able to fix the visas.高达40%的学生签证均已过期。Up to forty per cent of the students had ove...
A critic be a legless man who teach running.批评家,是教人跑步的无腿人....Douglas Bader, the legless wartime fighter pilot...道格拉斯·巴德——昔日战场上的无腿战斗机飞行员They found the locals getting legless on tequila.他们发现当地人喝龙舌兰喝得酩酊大醉。The slow-worm is i...
单词secretary和secret有同样的拉丁词根。The word "secretary" comes from the same Latin root as the word "secret".从语法的观点看, 梵语的变格范例明确了词根的概念.Grammatically, the Sanskrit paradigm exemplifies the concept of radical.Love是lovely, loveliness...