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....
他的失败似乎是命中注定的.It'seemed that his failure was predestined.他认为一切都是命中注定的.He thought that whatever happened was predestined.我觉得我的婚姻是命中注定的.I had always felt that my marriage to her was in the cards....
沉积间断面是从下边逐渐填满的.The hiatus in sedimentation is filled in progressively from below.(定语)外层填满的原子不形成化合物.Atoms with the outer layer filled do not from compounds.即将被圣诞老人填满的长袜悬挂在壁炉上方.Stockings that will be filled by Santa Claus ...