adv.无情地;冷酷地;
例句:
She behaves rather heartlessly toward her admirers.
她对她的仰慕者很无情.
The pendulum ticks callously, heartlessly.
这是谁的遗训?
Can you think I would be so heartlessly treacherous?
难道你认为我会那样残酷地背信弃义?