Well, the inbetweens produced by the computer were completely useless.

好，这样电脑产生出来的中间画完全没有价值。

youdao

Is it true that the elevator close-door button is completely useless?

电梯的关门按钮真的是毫无用处的吗？

youdao

One may render a database completely useless should he back it up at the filesystem level.

如果在文件系统级进行备份，就可能使数据库完全失效。

youdao

Now as an aside, I'll admit this is a completely useless program, much like the first couple of ones we did because why would you write a program just to solve this?

说点题外话，我承认这是一个完全无用的程序，跟我们之前写的两个程序一样,我们为什么需要写个程序来解决这个数学运算呢？

哈佛公开课 - 计算机科学课程节选

And then remember how you solve this 'cause otherwise completely useless exercise.

记住我是怎么解决这个问题的，否则就是一次,无意义的演练了，对吧。

哈佛公开课 - 计算机科学课程节选

Bottom line: To all intents and purposes, WPS is now completely useless.

FORBES: Your WiFi is (Possibly) No Longer Secure!

Since the velocipede has been around in many forms for well over 100 years, you might think this a completely useless study.

FORBES: Why It Pays To Study Farmville And Twitter

That alone can be enough to do good, even though the magnets, crystals and ultra-dilute solutions applied to the patients are, by themselves, completely useless.

ECONOMIST: Alternative medicine: Think yourself better | The