胚胎在羊膜腔中发育。The embryo lives in the amniotic cavity.羊膜穿刺术是从羊膜囊抽取羊水的技术.Amniocentesis is the removal of fluid from the amniotic sac.中速滤纸虽也可贴附,但复水后不能起到支撑作用,并发生纤维脱落,附着于羊膜上,不利于手术.Filter paper can'tsupport the amnion after ...
蚯蚓深深地钻进底土.Earthworms burrow deep into the subsoil.进入底土的化学物质会减少,这对土质松软的热带土壤而言尤为重要。Less chemical gets into the sub-soil which is particularly important with the light, tropical soils.土壤中含有效锌转低时, 深层耕翻会使缺锌的底土暴露出来.In a solid ...
"What about a liqueur with your coffee?" suggested the waitress.“咖啡里加杯甜酒怎么样?”女服务员建议。Sometimes they tell me I'm just a glorified waitress.他们有时候对我说我只是个女招待,只不过称呼好听一些罢了。My waitress whipped the plate away and put down my...
When he spoke his voice was jumpy.他说话的时候声音听起来很紧张。I told myself not to be so jumpy.我告诉自己别这么提心吊胆的。The refugees are still jumpy, although they are now in safety.难民们虽然已经到了安全地带,但还是战战兢兢的....