Nikolai petrovitch was himself so good and considerate . 尼古拉彼得洛维奇自己也很和善又会体贴。
2.
This time was harder for pavel petrovitch than for another man . 这个时期对巴威尔彼得洛维奇比对于任何另一个人更难过。
3.
This time was harder for pavel petrovitch than for another man 这个时期对巴威尔?彼得洛维奇比对于任何另一个人更难过。
4.
Russian physiologist who is best known for discovering the conditioned response . he won a1904 nobel prize for research on the nature of digestion 巴甫洛夫，伊凡?彼得洛维奇1849 1936俄国生理学家，因发现条件反射而著名，他1904年因在研究消化作用的特征方面的贡献而获诺贝尔奖
