gainfulness
/gainfulnɪs/the quality of affording gain or benefit or profit.
noun [抽象名词] 唯利是图（原形是 gainful）
A larger capital to prove the gainfulness which ever attends the exploiting a supreme agent of discovery. 一个更大的资本，以证明利润永远伴随着一个最高的发现代理人的剥削。
