当日往返的短途旅行的英文：
day trip

day是什么意思：
n. 一天；白昼，白天；工作日；时代，时期

Things go on day by day.
事情逐日进行着。

Day by day the situation is improving.
情况在一天天地好转。

Like this, day after day.
就这样，日复一日。

It was a fateful day.
那是个不祥的日子。

Meantime, from day to day they endure.
同时，一天天他们捱了下去。

trip是什么意思：
n. 旅行；行程；跌倒，失足；失误；轻捷的步伐
v. 绊倒；失足；使失误，使犯错误；轻快地走

The trip needs careful planning.
这趟行程需要周密计划。

The trip bushed us.
旅行使我们筋疲力尽。

They chartered a bus for the trip.
为这次旅行他们租了一部巴士。

meditate a trip abroad
计划作一次出国旅行

He has gone on a business trip.
他出差去了。