Andy Canvin is a pioneer on the strange frontier of DNA genealogy.安迪-卡文是DNA谱系学奇异前沿的先锋人物.He had sat and repeated his family's genealogy to her, twenty minutes of nonstop names.他坐下又给她细数了一遍他家族的家谱，20分钟内说出了一连串的名字。He was ...
A constitutional amendment precludes any president from serving more than two terms.一项宪法修正案使得任何总统的任职不得超过两届。The surface reactivity of many nonblack fillers generally precludes strong bonding with this type of matrix.许多非碳黑...
Sexual incompatibility is wide - spread in the apple.性的不亲合性在苹果中很普遍.Gametophytic self - incompatibility ( GSI ) is a widespread mechanism in flowering plants , which prevents self - fertilization and promotes outcrossing....
Not any more, mocked the crows from shady pine bough perches.时光不再啊, 乌鸦栖息在成荫的松树主枝上,向我发出嘲笑.The strong fortress mocked the invaders.坚固的堡垒使入侵者无法攻入。She mocked him as a country boy.她嘲笑他是个乡下孩子。Clarion calls to liberation had be...
长长的一阵紧锣密鼓声中迎来了高空秋千表演者。A long drum roll introduced the trapeze artists.我们看到公园管理员让一些大男孩从秋千上下来。We saw the Park Keeper telling a bunch of older boys to get off the swings.她坐在前廊的秋千上.She sat on the front porch swing....
She called us all heathens and hypocrites.她称我们都是不信神的伪君子。All the others, even those who resembled ourselves, were cowards and hypocrites.所有其他寡头政治家, 即使那些同我们相象的人, 也都是些懦夫和伪君子.The Puritans, according to the familiar accusatio...
Both the free hydroxyl groups readily undergo esterification.两个自由羟基,都容易酯化.The chemical method include treating with sulfuric acid, saponification, acylation, esterification, etc.化学方法包括酸洗法 、 皂化法 、 酰化法和酯化法等.Iso - army gall...
新内野游击手在二垒附近真是来去如飞.The new infielder really covers the ground at second base.一垒手 、 二垒手、三垒手和游击手则叫做内野手.The first, second and third basemen and shortstop are called infielders.防御二垒垒包附近的内野手.Second Baseman - The fielder who pl...