If you are careless, you do not pay enough attention to what you are doing, and so you make mistakes, or cause harm or damage.
双语例句
例:
I'm sorry. How careless of me.
对不起,我太粗心了。
例:
Some parents are accused of being careless with their children's health.
有些父母被指责对孩子的健康掉以轻心。
2.?不在意的
If you say that someone is careless of something such as their health or appearance, you mean that they do not seem to be concerned about it, or do nothing to keep it in a good condition.
双语例句
例:
He had shown himself careless of personal safety where the life of his colleagues might be at risk.