s. devoid of courage or enthusiasm
a. 无情的, 无勇气的
1. She felt heartless for not helping the stray dog.
她因为没有帮助那只流浪狗而感到无情。
2. His heartless comments hurt her feelings deeply.
他无情的评论深深伤害了她的感情。
3. It's heartless to ignore someone who is in need.
忽视一个有需要的人是无情的。