结果 泄殖腔发育过程中,胎龄15d前 的正常鼠胚, 尿直肠隔将 泄殖腔 分为腹侧的尿生殖窦和背侧的直肠两部分, 二者共同相通于泄殖腔管. Results In normal fetus, the urorectal septum ( URS ) descended, its distance to cloacal membrane decreased gradually.
原来的柏油操场已经覆上了草皮或种满了鲜花。The asphalt playgrounds have been grassed over or sown with flowers.柏油路面两边的辅道上布满车辙，凹凸不平。The side tracks off the tarred road were rutted and uneven.我闻到了柏油熔化了的味道。I smelled tarry melted asphalt....
The use of Gilbert's method sharpens our field observations.吉尔伯特方法的应用使我们的观测结果更具有说服力.Cold weather sharpens the pain in my knee.寒冷使我膝盖的疼痛加剧.He that wrestles with us strengthens our nerves and sharpens our skill.和我们搏斗的...
刻划了非负符号模式矩阵的强迫(蕴含)幂等性.The potential idempotence of nonnegative sign pattern matrix is described.该模型具有数值可加型标准综合函数所具有的性质, 即单调性 、 有界性和幂等性.This model occupies some properties of additive standard synthesis function, namely, ...
A handful of common sense is worth bushel of learning.一点小常识常胜过很多有价值的学问。She bought a bushel of apples from the farmer.她从农民那里买来一蒲式耳的苹果。They are offering farmers $2.15 a bushel for corn...他们向农民出价每蒲式耳2.15美元收购玉米。He must not m...
He reached down the atlas from the top shelf.他从书架顶层取下地图集.The mighty Atlas was left enchained, cursed to forever hold the world on his shoulders.泰坦巨人阿特拉斯已被牢牢地束缚着, 并附上了将永远肩扛世界的诅咒.The atlas contains forty maps, including th...
发现自己潜在的幽默,不要把生活想象地过于沉重.Develop a sense of humour and do not take life so seriously.然而,人们也仍然未找出感染因子 —— 仍是令人难以想象地困难.Here too the infectious agent is elusive -- yet incredibly hardy.价值难以想象地贬缩了.Values have shrunken to fantas...
the Screen Actors' Guild影视演员协会I belong to a guild of wine butlers.我属于主管酒类的男仆同业公会.The same thing holds for the guild member in the medieval towns.中世纪城市的行会市民,也是如此....
I feel a strong kinship with him.我觉得与他十分投契.The ties of kinship may have helped the young man find his way in life.亲情可能帮这个年轻人找到了生活的方向。ties of kinship亲属关系She evidently felt a sense of kinship with the woman.她明显地感到对这个女人有一种亲...
Use shells to decorate boxes, trays, mirrors or even pots.用贝壳来装点盒子、托盘、镜子甚至是花盆。He frugally saved various bits of the machine in carefully marked boxes.他厉行节约地把这台机器的各种零件放进仔细标记的盒子里收好。They returned home with the car bulging w...