This is very good news for commercial space travelers.

这对商业太空旅行者来说是个非常好的消息。

He was perhaps the greatest commercial traveler this country has ever known.

他也许是这个国家所知道的最伟大的商业旅行者。

Already at the age of twenty-five you see the professional mannerism settling down on the young commercial traveler, on the young doctor, on the young minister, on the young counselor at law.

年仅 25 岁， 你就会看到职业的举止在年轻的商业旅行者、年轻的医生、年轻的牧师和年轻的法律顾问身上扎下了根。