????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????sine qua non是一個(gè)拉丁語(yǔ)術(shù)語(yǔ)，相關(guān)的中文表達(dá)是“無(wú)之則不然”，指不可或缺的前提和條件。（參考《元照英美法詞典》）。

相關(guān)拉丁文表達(dá)：

causa sine qua non 不可缺少的原因；必要原因

conditio sine qua non不可缺少的條件

英文釋義參考如下：

Sine qua non (/?sa?ni kwe? ?n?n, ?s?ni kwɑ? ?no?n/, Latin: [?s?n? k?a? ?no?n]) or condicio sine qua non (plural: condiciones sine quibus non) is an indispensable and essential action, condition, or ingredient. It was originally a Latin legal term for "[a condition] without which it could not be", "but for...", or "without which [there is] nothing." Also, "sine qua non causation" is the formal terminology for "but-for causation."

可以參考如下例句，看一看具體使用場(chǎng)景：

The key asset of any international organization is its staff; therefore, strengthening the language skills of staff is a sine qua non conditionfor reinforcing the multilingualentity of any organization.

任何國(guó)際組織的主要資產(chǎn)是它的工作人員，因此提高工作人員的語(yǔ)言技能是加強(qiáng)任何組織的多語(yǔ)言特性的必要條件。

Several trade-related policy interventions wereentified in the paper cited above, which include creating an enabling environment in CDDCs and LDCs as the sine qua nonfor all the other inputs and services to work so that these countries are able to avoid market failure, attract foreign and local investment, improve supply-side capacity and competitiveness, and access international markets.

上述文件中提出了一些貿(mào)易政策干預(yù)措施，包括在依賴(lài)初級(jí)商品的發(fā)展中 經(jīng)濟(jì)體和最不發(fā)達(dá)國(guó)家創(chuàng)造有利環(huán)境，而這是所有其他投入和服務(wù)起作用的 必要 條件，是為了讓這些國(guó)家能夠避免市場(chǎng)失靈，吸引外國(guó)和本地投資，提高供方能力及競(jìng)爭(zhēng)力，并進(jìn)入國(guó)際市場(chǎng)。

轉(zhuǎn)載自：旗渡譯問(wèn)網(wǎng)站  作者：旗渡多語(yǔ)信息中心