因此你必须调查旅行社是否是专业从事商务旅行安排，是否有相关经验以及是否有一个良好的成绩记录，之后才能做出选择。

So you need to find out whether a certain agency specializes in business travel arrangement or not, whether it is experienced and has a proven track record of performance before making the selection.

youdao

因此你必须调查旅行社是否是专业从事商务旅行安排，是否有相关经验以及是否有一个良好的成绩记录，之后才能做出选择。

So you need to find out whether a certain agency specializes in business travel arrangement or not, whether it is experienced and has a proven track record of performance before making the selection.

youdao