首先我们来看下be occupied with和be occupied in的大致意思：
be occupied with：词性为动词短语，指在进行某项活动或任务时所花费的时间和精力
be occupied in：词性为动词短语，指在特定的领域、活动或工作中忙碌或投入
通过下面的表格我们了解下be occupied with和be occupied in的含义、发音和用法
接下来让我们看下be occupied with和be occupied in的用法区别：
1.用法：be occupied with强调忙于做某事，是一种状态；be occupied in强调从事某种活动或工作，是一种行为
例子：
- She was occupied with work all day.
(她一整天都被工作占据。)
- He is often occupied in the library.
(他常常在图书馆里忙碌。)
2.语义：be occupied with更常用于抽象的事物，如思考、计划、研究等；be occupied in更常用于具体的活动、工作、任务等
例子：
- He was occupied with doing his homework.
(他被写作业所占据。)
- They are occupied in conducting an important research.
(他们正在进行一项重要的研究。)
3.时间：be occupied with通常指长时间或全天候地忙于某事；be occupied in通常指短时间或特定时段内从事某项活动
例子：
- He was occupied with his friend's wedding arrangements throughout the whole weekend.
(他整个周末都被朋友的婚礼安排所占据。)
- He is occupied in the gym every morning.
(他每天早上都在健身房里忙碌。)
4.重点：be occupied with强调对某事的关注、专注或热衷；be occupied in强调参与某项活动或工作的实际行动
例子：
- He has been occupied with the planning of the new project.
(他一直被新项目的策划所占据。)
- She is occupied in participating in an art exhibition.
(她正在参与一个艺术展览。)