“一回”造句

虽然我很讨厌去，但也就此一回了。
Much as I hate to go, it's now or never.

这么多年来，头一回有人要我出示身份证。
For the first time in many years, I got carded.

还有一回，我一接电话，就掉线了。
On another occasion I answered the phone and the line went dead.