1)I have had lunch with customer.2)I had lunch with customer.

问题描述:

1)I have had lunch with customer.2)I had lunch with customer.
Please translate to Mandarin and explain the difference.
1)I have had lunch with customer.
2)I had lunch with customer.

I have had lunch with customer.我已经和客户吃过午饭了.
I had lunch with customer.我和客户吃了午饭.
第一句用完成式,强调午饭已经吃了.第二句用过去式,表示的是之前和客户吃午饭,并非现在或现在这次.