1）使用《牛津英語搭配詞典》查“viable”，了解它作為形容詞時(shí)的常用搭配。

commercially/economically/financially/politically viable

prove/seem viable

2）翻譯下面的句子：

中國經(jīng)濟(jì)下行，許多 O2O 模式顯得不再可行。

As China's economy is going downhill, many O2O business models no longer seem economically viable.

參考翻譯：As China’s economy is going downhill, many online-to-offline (O2O) businesses no longer seem (commercially/economically) viable.