In each case the hijackers bluffed the crew using fake grenades...每一个案例中，劫机者都用了假手榴弹吓唬机组人员。He threw his last four grenades.他投出了最后四颗手榴弹。The hijackers were armed with hand grenades.劫机者身上带着手榴弹。In the latest incident at the w...
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...
For more details about these products, send a postcard marked HB/FF.要了解这些产品的详细信息，请寄来标明HB/FF字样的明信片。The company was coasting on the enormous success of its early products.公司凭借早期产品的巨大成功而在市场上遥遥领先。The two principal combustion...