She found great chasms in her mathematics and physics.她觉得她的数学课和物理课的知识还很欠缺.The sectarian chasms remain deep, the wounds of strife raw.各派别的分歧巨大, 旧恨新仇交织....
以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using st...
He complains that the others have done him out of his share.他抱怨其他人骗走了他应得的那份。She often complains that he is dishonest.她常埋怨说他不诚实.She always complains of the food.她常常嫌菜不好吃....
Sounds of voices and commotion could be heard downstairs now.现在能听见楼下人声鼎沸。The downstairs of the two little houses had been entirely refashioned.两栋小楼的底层已经彻底翻修过。He was in an argument with his landlord downstairs.他与楼下的房东发生了争...
In heavy concentrations, ozone is irritating to the eyes, nose and throat.高浓度的臭氧会对眼睛、鼻子和咽喉有刺激作用。Large concentrations of capital were in the hands of merchants.大量资本集中在商人手里.The latest data showed that global ozone concentr...
Most babies have a closed ductus arteriosus by 72 hours after birth.大多数婴儿在出生后72小时内动脉导管闭合.Figure B shows a heart with a patent ductus arteriosus.图B显示了存在“开放性动脉导管”问题的心脏.What are the symptoms of a patent ductus arteriosus?动脉...