A: 昨天你在办公室，看见了哪些人？
B1: 我看见了小丁跟小陈。
B2: 我看见了小丁和小陈。

Is there any difference between B1 and B2?

Do you agree that B1 (with 跟) means 小丁 and 小陈 were together whereas B1 (with 和) means she saw 小丁 and 小陈 but necessarily together?

查看来自AI monga的回答

In Simplified Chinese, both B1 and B2 are correct and can be used interchangeably. However, there is a slight difference in meaning between the two.

B1: 我看见了小丁跟小陈。
In this sentence, 跟 (gēn) is used to indicate that 小丁 and 小陈 were seen together. It implies that they were in each other's company or doing somethingB2: 我看见了小丁和小陈。
In this sentence, 和 (hé) is used to indicate that 小丁 and 小陈 were seen, but it does not necessarily imply that they were together or doing something together. It simply means that both 小丁 and 小陈 were seen separately.

So, to answer your question, B1 (with 跟) does indeed suggest that 小丁 and 小陈 were seen together, while B2 (with 和) does not necessarily imply that they were together.