adj.麻木的；无情的；硬结的；起老茧的
Callous virus writers are using the London bomb attacks to spread a malicious program on computers across the country. 那些冷酷无情的电脑病毒编写者们现在开始在全英范围内传播一种新的病毒程序，这次他们选用的题材便是刚刚发生的伦敦连环爆炸案。
Jane's kindly and gentle nature could not but revolt at her sister's callous behavior. 简的友善与温柔怎么也打动不了她姐姐的那颗无情的心。
