Ken was in the act of paying his bill when Neil came up behind him.当尼尔从后面走过来时，肯正在付账。Neil's colleagues say he was actually in a joking, upbeat mood.内尔的同事们说他实际上在说笑逗乐，心情不错。This was the moment when Neil Armstrong became...
They went backpacking in Spain last year.他们去年背着背包在西班牙旅行。What advice does Luciano give David about backpacking in Europe?关于在欧洲背包徒步旅行,Luciano给了大卫哪些建议?Your review must be about gear that directly relates to backpacking.你的测评...
The quarks and gluons indeed break out of confinement and behave collectively, if only fleetingly.夸克与胶子确实打破牢笼而表现出集体行为, 虽然这种状态转瞬即逝.their confinement to army barracks他们局限于军营的生活She had been held in solitary confinement for ...