be careless about

例句：

1. 1. She was careless about her work and it led to a lot of mistakes.
   她对自己的工作粗心大意，导致了很多错误。
2. 2. The manager was inattentive about the details of the project and caused delays.
   经理对项目的细节不够关注，导致了延误。
3. 3. He was careless about his finances and ended up owing a large amount of money.
   他对自己的财务状况粗心大意，最终欠了一大笔钱。