She stumbled and fell, scraping her palms and knees.她绊了一下摔倒了，手掌和膝盖都蹭破了。The only sound is that of knives and forks scraping against china.只听见刀叉摩擦瓷器的刺耳声。We're barely scraping by on my salary.我们靠我的工资勉强度日。...
他前晚听到的是狗叫声。It was the dog he'd heard the night before last.她听到了外面楼梯平台上的狗叫声。She heard the dog on the landing outside.夜空中又传来了那又长又凄凉的狗叫声.That long, lugubrious howl rose on the night air again!...
The planet, dubbed HAT - P - 1, is located some 450 light - years from Earth in the constellation Lacerta.这个行星, 编号为 HAT -P-1, 位于离地球450 光年 的蝎虎星座内.The planet, dubbed HAT - P - 1, is located some 450 light - years from Eart...
Cytokinesis is of the simultaneous type and microspore tetrads are mainly tetrahedral.小孢子母细胞减数分裂为同时型.In the study, de Boer and colleagues analyzed data on about 1,300 type 1 diabetes patients.在本研究中, deBoer和他的同事分析了1,300名1...