A species of cockroach sprays a substance , ethylacrolein, that is a kind of tear gas.某种蟑螂喷射一种催泪性毒气――乙 基丙烯 醛.It enables scientists to transfer genes between different species that would not interbreed in nature.它使科学家之间的转...
If it hadn't been bucketing down with rain and blowing a gale, I would have had a glorious view.如果不是大雨和狂风，我本可以欣赏到极其美丽的风景。The girl was bucketing water from the well.那姑娘在用桶从井里打水.They were bucketing the water and throw...
Curiosity is the taproot of an intellectual life , the most valuable of our simian traits.好奇是高智生命的根源，也是我们类人猿特征中最有价值的部分。He seems to prefer intellectual counteroffensives to decrees and crackdowns.他似乎更倾向于用知性的反击来判决和痛击对手.The...