She's already counting down to the big day.

她已经在对这一重大日子倒计时了。

《牛津词典》

Time already starts counting down.

时间已经开始倒数了。

youdao

ARE YOU COUNTING DOWN THE days?

你正在数日子吗？

youdao

And it's just gathering together the multiplications while counting down the exponent. And you can see it when we get down to the end test here, we're going to pop out of there and we're going to return the answer.

这个方法就是通过乘法,来一个一个的减小指数,可以看到,最后面的结果测试，我们会在这里退出,然后返回答案。

麻省理工公开课 - 计算机科学及编程导论课程节选

I should've been counting down--35, 30, 25 and so forth.

我应该在倒计时--35年，30年，25年等等。

耶鲁公开课 - 死亡课程节选

Because I keep counting down each time around-- mostly I've got to unload this candy which is driving me nuts, so-- thank you.

因为我每次循环b减了,我一共要执行这个循环b次,所以这里我们一共执行了3b次基本操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

He drew a calendar on his pad of paper to start counting down the days.

NEWYORKER: Hellhole

He decided to go negative right as we're counting down to the Iowa caucus.

NPR: Romney Finds No Place Like Home

Both men had been counting down the hours until the release and were among the first customers in line.

CNN: PlayStation 2 makes its North American debut