But most travel is decidedly optional. Only corporate travel, about 30% of trips over 50 miles, is truly compulsory.

但是大多数旅行是可去可不去的，在超过 50 英里的旅行中，只有 30%属于真正必需的商务旅行。

It was dealing with mainly corporate travel at the time.

当时它主要处理公司差旅。

It's much lower than leisure, but our business, our corporate travel was 45% of where it was in 2019 in the month of June, and that's up from 22% in the month of March.

这远低于休闲，但我们的商务旅行，我们的公司旅行在 6 月份是 2019 年的 45%，高于 3 月份的 22%。