"Four-character coordinate phrase" which is situated between the four-character coordinate free phrase and fix phrase is a very good window to study lexicalization of free structure.

“四字骈语”介于四字并列的自由短语和固定短语之间，是研究自由结构词汇化很好的窗口。

youdao

You may have heard the phrase, "Open Source is free as in speech, not as in beer."

你也许听过这句话：“开源是自由的（free as in speech），而不是免费的（free as in beer）。”

youdao

In other words, the phrase "duty free shipping" will take on a whole new meaning.

换句话说，“免税运输”这个术语到时候就会具有一个全新的含义了。

youdao

That's a critical question because some African countries within the Commonwealth - whose observers are on the ground - have already said that as far as their concerned, the election was legitimate and others have even used the phrase - free and fair.

BBC: Six forum: BBC correspondent Rageh Omaar

"Edgy" (the third most often cited word in the industry, right after "money" and "money") is a generic catch phrase that implies free-spirited bravery on the part of the people who are making the film.

CNN: Review: Darkness in 'Very Bad Things' nearly works

The most dramatic phrase in the speech was his promise to free America from its addiction to oil, but there was little real change in energy policy (see article).

ECONOMIST: State of the union