跟不上趟

be unable to keep up with the procession

你到北京去过几趟？

How many trips to Beijing have you made?

还得再运三四趟。

It still needs three or four trips.

只好再让你辛苦一趟。

I must trouble you to make one more trip.

今天夜里还有一趟车。

There is still another bus leaving tonight.

我是坐这趟车来的。

I came on this bus.

最后一趟

last time

不止一趟

more than once

写了几趟字

write several lines

摆了两趟桌子

arrange the desks in two lines