grimly

I have exercised like this — obsessively, a bit grimly — for years, but recently I began to wonder: Why am I doing this?

我痴迷得有点冷酷地这样锻炼了几年，可是，最近我开始疑惑：我为什么要这么做？

Others more grimly said they saw bodies in the streets that they could not retrieve.

其他人更冷酷地说他们看见了街上没来得及收的尸体。