偏差: bias, deviation...
出租车: taxi, (Tw) rental car...
电子邮件: email...
争执: to dispute, to disagree, to argue opinionatedly, to wrangle...
特性: property, characteristic...
网络: network (computing, telecommunications, transport etc)...
充实: rich, full, substantial, to enrich, to augment, to substantiate (an argument)...
行家: connoisseur, expert, veteran...
交朋友: to make friends, (dialect) to start an affair with sb...
难说: hard to tell (i.e. hard to judge or hard to predict), cannot bring oneself to say it...