辨析：be absorbed in 和 be absorbed into

1.be absorbed in 全神贯注于…;聚精会神于…
He was absorbed in the book.
他全神贯注于书本上。
She was completely absorbed in writing a letter when I entered.
我进来时他正全神贯注于写一封信上。

2.be absorbed into 被并吞;被并入
Small businesses are absorbed by big ones.
小公司被大公司吞并了。
Most little shops have been absorbed into big businesses.
大多数小店已被并入大公司。