Once they cleared the housetops, the wind was raw and biting.他们清扫完屋顶后，寒风刺骨。The housetops, the trees, and the sparrows proclaimed the spring.屋顶, 树木以及麻雀都在宣布春天的到来.When I took bus my house, There was snow on the building san...
Older mothers tend to be too idealistic about the pleasures of motherhood.较年长的母亲往往对身为人母的乐趣过于理想化。Has motherhood changed your career outlook?当了母亲是否改变了你的职业前途？Should motherhood necessarily mean sacrifice and self-denial?做母亲就...
在传粉与受精的间隔期间,他们毁坏了雌球花.They damage female strobili during the interval between pollination and fertilization.然而, 虫媒传粉 ( 虫媒植物 ) 种的花粉也常常由风来输送.However, pollen insect - pollinated ( entomophilous ) species is also often transp...
Cast free films of ethylcellulose with different composition were prepared.为了方便膜处方研究,采用浇铸法制备了不同处方的乙基纤维素游离膜.The ethylcellulose aqueous dispersion can be prepared by latex converge, phase change, emulsion - solvent - evapo...