硅酮隆胸植入物a silicone breast implant一种叫作吡啶酮的新型抗艾滋病药物能促使艾滋病毒变异,使其不能繁殖,也不会再感染新的细胞。A newer anti-HIV drug called pyridinone caused HIV to mutate into a form which could not reproduce or infect new cells.所有的主要难点都涌现在烯酮 ( 1 ) 的合成中....
The island may be reached by boat from the mainland.这个岛屿可以从大陆乘小船到达。He made a firm decision to leave Fort Multry by boat.他打定主意乘船离开穆尔特里堡。It's better for you to go by boat than by train.你与其坐火车,不如坐船....