在这种情形中,有两种几乎不能互变的变态.There are two almost non - interconvertible modifications.酮及烯醇互变是互变作用最普通的现象, 它们都是真实的化学实体.Keto - enol tautomerism is the most common tautomery phenomenon. Keto - enol themselves are the real chemical s...
他用纸巾将血迹擦去。He wiped away the blood with a paper napkin.他走出淋浴间，开始用毛巾把身子擦干。He stepped out of the shower and began towelling himself down.他擦了又擦，可就是擦不干净。He rubbed and rubbed but couldn't seem to get clean....
He nodded and puffed on a stubby pipe as he listened.他边听边点头，还吸着一支粗短的烟斗。He pointed a stubby finger at a wooden chair opposite him.他伸出一根粗短的手指指向他对面的一把木椅。He spoke words slowly, thrusting a stubby finger toward his face.他慢条斯理...
The uncovered bucket in the corner stank.角落里那只未盖盖子的桶散发着臭味。Security forces have uncovered a plot to overthrow the government...安全部队揭露了一起推翻政府的阴谋。The dish had been uncovered when I entered the kitchen.我进厨房时, 那盘菜已被掀开。The ope...