罗斯压低了声音,然后被达格玛低沉的声音打断了。Rose's voice dropped and was interrupted by the rumble of Dagmar's.不知怎么的,他觉得自己必须得压低声音。For some reason he felt constrained to lower his voice.她把嗓音压低到几乎听不见。She'd lowered her voice unti...
Many English words are derived from Latin and Greek.英语很多词源出于拉丁文和希腊文.Many English words are derived from Latin and Greek words.许多英语词是从拉丁词和希腊词派生而来的.The word " girl " is derived from Middle English " girle ".“ girl ” 这个词是由中...
Therefore , one cannot ignore the contribution of biogenic volatile organic compounds to the secondary organic aerosols.二次有机气溶胶由于其对环境 、 气候和人体健康的影响,正日益受到人们的关注.Dihydroxyindole is an important intermediate of melanin, amino...
目的: 研究乳杆菌肽聚糖 ( PG ) 的抑瘤作用及其机制.Objective : To investigate the antitumor effect of lactobacillus peptidoglycan ( PG ) and explore its possible mechanisms.来源于土壤细菌的多肽抗生素(与杆菌肽类似).A polypeptide antibiotic, produced by the soil...