Definition: not giving enough attention to what you are doing Level: B1
我儿子的老师说他作业经常粗心马虎。
My son's teacher says that his work is often ___careless and sloppy.
他对她的外表发表了粗心的评论，这让她很不安。
He made a ___careless remark about her appearance that really upset her.
每天都有车祸发生，因为很多司机粗心大意。
Car accidents happen every day, because many drivers are ___careless.
