venturesomeness

noun [抽象名词] 冒险；投机；大胆；危险

Hindu and Arab venturesomeness brought arithmetic and algebra to the fore once again and placed it almost on a par with geometry. 印度人和阿拉伯人的闯劲把算术和代数又一次提高到几乎和几何并驾齐驱的地位。