adj. 可行的，值得做的
翻译：With the xxxx of China's economy, many O2O modes seem not to be viable.
翻译参考：As China's economy is going downhill, many O2O businesses no longer seem economically/commerically viable.
造句参考：Starbucks' new store in this fourth-tier city has proved commercially viable.
Renewables are economically viable alternatives.
To keep its design pipeline full of viable new ideas, the firm must constantly forecast the computer industry's direction.
