Alcohol is a potent drug that anaesthetizes the brain.酒精是一种能麻醉大脑的烈性药物。Do either of you smoke cigarettes or drink alcohol?...你们俩有人吸烟或喝酒吗？Despite being classified as a depressant, alcohol initially acts as a stimulant on t...
In 1985, he began to show signs of alcohol and drug dependency.在1985年，他开始表现出酗酒嗜毒的迹象。Many motor accidents are the result of unthinkingly mixing speed and alcohol.许多机动车事故都是不计后果地酒后开快车造成的。He was arrested on suspicion of driv...
Last year 400,000 acres of land yielded a crop worth $1.75 billion.去年40万英亩的土地产值达17.5亿美元。It yielded a profit of at least $36 million.它带来了至少3,600万美元的收益。His trip to Melbourne had yielded a lot of information.他的墨尔本之行让他大开眼界。...
Both the R groups are alkoxy residues.两个R基团都是烷氧基.R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基....