우선,어제 나는 거래처 출장으로 인하여 회의에 참석하지 못하였다

우선,어제 나는 거래처 출장으로 인하여 회의에 참석하지 못하였다.

Results (English) 1:

First of all, yesterday I did not attend the Conference due to a business trip, the account.

Results (English) 2:

First, yesterday I did not attend the meeting due to business trip customers.

Results (English) 3:

first of all, i was a customer of the business, because did not attend.