mean

这组数据的平均值是15。

The ___mean of this data set is 15.

别对我这么刻薄！

Stop being so ___mean to me!

这位房东吝啬到了就算寒冬降温也拒绝修理坏掉的暖气。

The landlord was so ___mean that he refused to repair the broken heater even during a winter cold snap.