杂原子数越多, 分子被氧化的程度越高.The larger the number of heteroatoms, the more highly oxidized the molecule.关键反应为底物控制的不对称杂原子共轭加成反应.The key step was a substrate controlled asymmetric heteroatom conjugated addition.杂原子烯反应是该反应的重要组成部分.Th...
这种两面周旋的态度在整个寄居海外运动中极为明显.This dual tug is apparent in the whole movement of expatriation.我朋友寄居在我叔叔家.My friend lodges in my uncle's house.他暂时寄居在伯[叔]父家.He sojourned with his uncle....