I have never used the restroom on an airplane.

我从未在飞机上使用过洗手间。

youdao

In one, we say we have never used cheap materials to make our products.

一个广告先解释我们从未使用劣质的原料来生产产品。

youdao

The syntax may look odd to UNIX old hands if they have never used it, but it works. See Listing 17.

对于从没用过这个特性的UNIX老手来说，这个语法可能有些奇怪，但它的确有效，参见清单17。

youdao

U.S.officials have never confirmed the use of Predator drones, but it is widely reported that the Central Intelligence Agency has used them to kill suspected terrorist leaders operating in Pakistan's largely ungoverned tribal areas along its border with Afghanistan.

VOA: standard.2009.10.27

Some investment advisors are leery about retail investors, particularly ones that have never used options before.

FORBES: Intelligent Investing

Just over 30% of respondents claimed to have never used ETFs at all.

FORBES: Institutional Use of ETFs Keeps Growing

It has also devised a remote control that allows people who have never used keyboards to surf the web.

ECONOMIST: The charms of frugal innovation