viable
【英英释义】
adj. 1. something that is viable is capable of doing what it is tended to do. 切实可行的，能办到的
2. foetuses, seeds, or eggs are described as viable if they are capable of developing into living beings without outside help. (technical) 能存活的，能生长发育的
foetus /'fitəs/ n. 胎儿
able to be done, or wort doing.
【词义深度解析】
viable本身的意思是“可以存活的”，常被引申使用表示“值得做的”。
正如健康的生命才可以存活，好的想法、产品、解决方案才能存活，我们可以用viable来形容表示想法、产品、解决方案这一类词，也常可以用它替换effective, feasible(if something is feasible, it can be done, made, or achieved)等词。
【例句学习】
1. A minimum viable product (MVP) is a product with just enough features to satisfy early customers and to provide feedback for future product development.
Minimum Viable Product, MVP 最简可行产品
能够satisfy early customers（满足早期客户）的产品是viable product，即能够在市场上销售出去可盈利的产品。
2. Stabucks' new store in this fourth-tier city has proved commercially viable.
fouth-tier city 四线城市
commercially viable 商业上可行
3. Renewables are economicallly viable alternatives.
renewables are natural energy sources such as wind, water, and sunlight which are always available. 可再生能源 是经济适用的替代能源
4. To keep its design pipeline full of viable new ideas, the firm must constantly forecast the computer industry's direction.
in the pipeline 正在筹备中/运行中
【词汇运用】
1. 搭配
verb: be/prove/seem/sound viable 可行；证明可行；看起来可行；听起来可行
become viable 变得可行 remain viable 保留生存力
make sth viable 使……可行
consider/regard sth as viable 认为某事可行
adv: extremly/truly/perfectly/potentially/still/no longer 完全可行；切实可行；可能可行；仍然可行；不再行得通
commercially/economically/financially viable 商业上、经济上、财政上可行
2. 翻译：中国经济下行，许多O2O模式显得不再可行。
As China's economy went down, many O2O commercial models seemed on longer viable. （自己）
As China's economy is going downhill, many online-to-offline business on longer seem commercially/economically viable. （参考翻译）
分析：大乌龙，这种一般性描述的句子往常都会用一般现在时或现在进行时，今天居然用了一般过去时，脑子里“神仙打架”。商业模式用business model更好些。
3. 生活场景应用
My boss considered against the tax authority as viable which confused me completely.