This is exactly the forth day of my study of Japanese.

这是我学习日语的第四天。

youdao

Today is already the forth day since I joined my work. so much feeling.

今天是我工作的第四天，有太多的感触了！

youdao

On the forth day, Chris asked his mom to bring his uniform to the hospital.

第四天，克里斯叫妈妈把制服带到医院来。

youdao

and Mexican officials. Every day, thousands of people on foot and in vehicles go back and forth across the border here, and millions of dollars worth of products cross the line in trucks and railroad cars.

VOA: standard.2009.04.30

And so when you start to poke around the puzzle pieces, you see that it can say things, we'll see movement in just a moment and sound and so forth, but at the end of the day, this is just like the program we used a moment ago for the sock exercise where we just hold Philip a step after step after step, do this, do this, do that, and yet, here too, we already see an opportunity for that thing we called the loop.

如果你认真看下这些拼图，你会发现它都是一些移动，并发出声音的功能块,就像我刚才的,练习程序一样,我们让飞利浦做这个动作，做那个动作，跟这里的情况一样，我们已经看到了称为循环的东西。

哈佛公开课 - 计算机科学课程节选

The implication is that the last phase of the campaign may be like trench warfare, with small amounts of ground shifting back and forth between the two candidates, day by day.

ECONOMIST: The rat-race

Manufacturers in Michigan, Indiana, Ohio, Illinois and throughout America depend on integrated U.S.-Mexico supply chains to bring components, supplies and finished goods back and forth across the border every day, sustaining millions of jobs in factories around the country.

WHITEHOUSE: The Untold Story About the U.S.-Mexico Border

To the young people here today, let me hope that you too will go forth, one day, inspired to help change the world.

UN: Secretary-General