我二十岁前后那几年过得真苦啊。My late teens and early twenties were really rough years.显然，莫扎特在二十几岁到三十刚出头时，身体非常好。Mozart clearly enjoyed good health throughout his twenties and early thirties.结婚二十年里，他只像样地度过两次假。In twenty years of mar-riag...
Ozone is produced by the reaction between oxygen and ultra-violet light.臭氧由氧气和紫外线发生反应而产生。Her father is an ultra - conservative who is still opposed to freedom to choose her spouse.她爸是个老古董,现在还反对她自由恋爱.Ultra - violet record...
A cloud is a mass of vapour in the sky.云是天空中的水汽团块.A cloud is a condensation of water vapour in the atmosphere.云是由大气中的水蒸气凝结成的.Clouds are formations of condensed water vapour.云是由凝聚的水蒸气构成的....
We'll just have to crawfish out of shaking hands with them.我们只有结束跟他们的友好关系.Crawfish, like shrimp or lobsters, belong to the scientific Crustacea.小龙虾和虾或龙虾一样, 在科学上属于甲壳纲动物.Exports: fish and crawfish, rum, salt, chemical...