鞭毛的旋转可以推动细菌在水中行进。The rotation of flagella pushes the bacteria through the water.微管还用于建造中心粒,基体, 纤毛和鞭毛.Microtubules are also used in the construction of centrioles , basal bodies , cilia and flagella.单胞体 单细胞 的微生物, 尤指单'...
我终于爬上了一块潮湿倾斜的暗礁。I managed to pull myself up onto a wet, sloping ledge.由于多暗礁,在这条河上航行很困难.Navigation is difficult on this river because of hidden rocks.船从暗礁之间穿过.The ship threaded her way between the hidden rocks....
There is a pervading sense of menace.有一种危机四伏的感觉。You're a menace to my privacy, Kenworthy.肯沃西，你这人真讨厌，居然侵犯我的隐私。a new initiative aimed at beating the menace of illegal drugs旨在打击非法毒品威胁的新举措...
Boas's own research spanned the scope of anthropology in its North American definition.博厄斯自己的研究涉及了北美人类学的整个领域.Old World boas: pythons; in some classifications considered a separate family from Boidae.欧洲水蟒; 巨蟒; 在某些分类中...