She handed over a form, then bobbed down again behind a typewriter.她递过来一张表格，随后又立刻埋头在打字机后面忙活起来。I bobbed to the surface and gasped a lungful of air.我浮上水面，深吸了一口气。The raft bobbed along more quietly.小木筏更加平静地漂浮向前。...
他穿着短裤，露出自己强壮多毛的长腿。He was wearing shorts which showed his long, muscular, hairy legs.他穿着短裤，露出自己强壮多毛的长腿。He was wearing shorts which showed his long, muscular, hirsute legs.单瓣的深紫色到红色星形花. 中绿色心型到蛋型叶, 叶面多毛. 标准型.Single purple -...
在一些细胞中观察到界限清楚的中心体.Clearly defined centrosomes have been observed in some cells.每个 动物细胞 跟植物细胞不同,都有一对中心体.Every animal cell ( but not plant cells ) contains a pair of centrioles.目前的研究表明中心体异常在人类恶性肿瘤中普遍存在.Recent studies revea...