natural selection怎么读？

the theory of natural selection, first propounded by Charles Darwin查尔斯∙达尔文首先提出的物竞天择理论Natural selection ensures only the fittest survive to pass their genes on to the next generation.自然选择确保只有最适应环境的物种得以存活下来，把基因传给下一代。All ba...

n.自然选择，物竞天择说...

idiot的近义词有：fool, idiot。下面这两个名词均有"笨蛋，傻瓜"的含义：fool：一般指缺乏智力、无判断力和识别能力、头脑糊涂的人。idiot：指智能低、动作迟钝、行为不符合正常的人。...

feeble的近义词有：weak, feeble, frail, fragile。下面这些形容词均有"虚弱的，乏力的"的含义：weak：普通用词，指缺乏应有的力量，可用于身体、意志或精神。feeble：指身体衰弱无力，精力几乎耗尽，含令人怜悯的意味。 frail：多指因经常生病而身体纤弱。fragile可与frail换用，但语气强，侧重脆弱，指人容易生病，指物容易破碎。...

n.（保护动物不遭捕猎等的）"绿色和平"组织...

lipstick的复数形式为：lipsticks...

经济复苏的迹象刚刚开始显现。The signs of an economic revival are only just beginning.英国广播公司刚刚成功地演示了一套新的数字无线电传输系统。The BBC has just successfully demonstrated a new digital radio transmission system.维拉队刚刚从甲级联赛中降级。Villa had just been rele...

Success is not final, failure is not fatal: it is the courage to continue that counts.--Winston Churchill成功不是终点，失败也并非末日，最重要的是继续前进的勇气。In 1945, Winston Churchill was defeated at the polls.温斯顿·丘吉尔在1945年的大选中被击败。Churchill was...

prodigal的复数形式为：prodigals...

重氮甲基...

n.热力学，动能学，力能学...

belied的音标：...

Empidoidea的音标：...

The method of HBV blood sample detected by piezoelectric biosensor is developed.建立压电石英晶体传感器检测乙肝血液样品的方法.AIM : To construct a new DNA biosensor of capillary.目的: 构建一种新型毛细管的DNA生物传感器.Biosensor is introduced detail in paper.详细...

On all sides , verdant sunset - bathed hills greet the eye.满目青山夕照明.The arena was bathed in warm sunshine...竞技场沐浴在温暖的阳光中。Now he bathed himself in despondency.此刻他就沉浸在怅惘之中.She bathed her toddlers in tubs.她在浴缸里给小孩子们洗澡。Once a...

我约她出去，她会答应吗？Will she say yes when I ask her out?好，如果简答应，我就接受。Okay, with the proviso that Jane agrees, I accept.我答应了。我没法拒绝。I said yes. I can't very well say no....

Everyone must think this situation through calmly and coolly.每个人都必须冷静沉着地仔细考虑这一情况。He sets out the facts coolly and dispassionately.他冷静、客观地摆出了事实。It's your choice, Nina,' David said coolly.“这是你的选择，尼娜，”戴维冷淡地说。...