It may be in a pool too small or too far from a potential market to justify the expense of drilling.
可能是储存它的池子太小,或与潜在的市场相距太远,因而钻井费用过高,不适宜开采。
There may be some matters of life and death or highest principle, which might justify such a risk, but there aren't many things that fall in this category.
也许有一些关乎生死或最高原则的事情可以证明这种冒险是合情合理的,但属于这一类别的事情并不多。
Even high-priced commodities like spices had to be transported in large bulk in order to justify the expense and trouble of sailing around the African continent all the way to India and China.
即使像香料这样的高价商品,也必须大量运输,以证明环绕非洲大陆航行到印度和中国的费用和不便是合理的。
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