I would miss my loving, erratic, harebrained mother. And her new husband.

我会怀念我那个深情、反复无常、轻率母亲。和她新丈夫。

He is a very erratic football player.

他是个技术非常不稳定足球队员。

This is especially problematic when the team thinks you're an erratic, egomaniacal nutcase with little or no real world chops.

当团队认为你是一个没有经历过风浪、古怪、疯子时，问题会更为严重。

The parallactic refraction between the stars and the satellite is small and well determinate, except for the irregular stellar movements known as erratics.

除了通称为游动不规律星体运动之外，恒星和卫星之间视差折光差微小，而且是容易测定。