In this example 'X' denotes the time taken and 'Y' denotes the distance covered.

在这个例子中，X表示所用的时间，Y表示所行的距离。

《牛津词典》

So x changes with time.

因此，X随时间变化而变化。

youdao

At the start of the session, set a timer and let everyone know that the group has "X" amount of time to pitch as many ideas as possible.

在会议开始的时候，设定一个时限并让每个人都知道小组有x的时间来提出尽量多的想法。

youdao

People have been working with x-rays for about 30 years by this time.

到现在为止,人类和X射线打交道大约30年了。

麻省理工公开课 - 固态化学导论课程节选

0 This time I called it X. I hard-coded into it the value 10.

这一次我声明它为X，我把它赋值为。

哈佛公开课 - 计算机科学课程节选

Caleb was a four-time X Games medalist attempting a move he has landed several times previously.

CNN: Snowmobiler Caleb Moore dies a week after crash

Caleb is a four-time X Games medalist who fell short on his rotation on a move he has landed several times previously.

CNN: STORY HIGHLIGHTS

Burke is a four-time Winter X Games champion in skiing the superpipe, a version of a traditional halfpipe with walls over 5m (16ft) high.

BBC: Canada freestyle skier Sarah Burke in coma after crash