for free

(informal)without cost or payment

(非正式)免費地，無償地

these professionals were giving their time for free.

這些專業人員在抽時間提供無償服務。

free and easy

informal and relaxed

隨便的，無拘無束

free, gratis, and for nothing

(humorous)without charge

(幽默)不收費地

a free hand

freedom to act at one's own discretion

自行處理權；自主權；全權；放手干的權力

free on board (或 rail)

(縮略詞: f.o.b. 或 f.o.r.)including or assuming delivery without charge to a ship or railway wagon

離岸價格；船（或火車）上交貨；裝船（或裝火車）免費

(a) free rein

a free ride

used in reference to a situation in which someone benefits without having to make a fair contribution

占便宜；無本獲利，白得

people have been having a free ride, paying so little rent that there is no money for maintenance.

人們一直在占便宜，只付很少租金以至于沒有錢搞維修。

the free world

the non-communist countries of the world, as formerly opposed to the Soviet bloc

自由世界（統指以前反對蘇聯集團的非共產主義國家）

it's a free country

said when asserting that a course of action is not illegal or forbidden, often in justification of it

這里是自由國家（用于聲稱做某事不違法或不受禁止，常有辯解之意）

make free with

treat without ceremony or proper respect

擅自處理；隨意對待

he'll have something to say about your making free with his belongings.

你擅自動用他的個人財物，他有話要說。

for free【非正式用語】

Without charge.

免費的