任何做药物试验的人都要担风险.Anybody who experiments with drugs is riding a tiger.这些试验的有效性已显得令人怀疑.The tests have been shown to be of dubious validity.他给他们详细地谈了他试验的情况.He told them in detail of his experiments....
C Company's sentries were just ahead.C连的哨兵就在前头。We posted sentries at the gates of the camp.我们在军营的大门口布置哨兵.We were guarded by sentries against surprise attack.我们由哨兵守卫,以免遭受突袭....
In 1964, impatient with Arkansas backward image, he challenged Faubus for governor.1964年, 他对阿肯色州的落后形象失去耐心, 开始挑战福伯斯,竞选州长....the Arkansas Gazette.《阿肯色报》Arkansas has seen a 70 % decline in its numbers since 1967.自1967年以来,这种...