The electrons are not equally shared and the carbon hogs the electrons a little bit more than the hydrogen, so the carbon is electron-rich and the hydrogen is just a little bit electron-deficient.

电子不是平均共享的,碳原子比氢原子吸引电子,更强烈一点点，所以碳原子是富电子,而氢原子是缺电子。

麻省理工公开课 - 固态化学导论课程节选

Many schizophrenics report a deficient desires of will.

许多精神分裂症报告中都会提及患者的欲望缺失。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选