I've become more callous toward people since I took this job.

自从参加这个工作和项目后，我已经变得更加冷酷无情和麻木不仁的人。

We usually have more callous on the left hand, and the viola is bigger.

主要是我们的左手经常会磨出硬茧, 而且中提琴的尺寸也要稍微大一点.

We usually have more callous on the left hand , and the viola is bigger .

主要是我们的左手经常会磨出硬茧，而且中提琴的尺寸也要稍微大一点。