1·Not only have we overcome them all, Buffett pointed out, but our standard of living has increased dramatically — nearly sevenfold in the last century.
巴菲特指出，我们不仅克服了他们而且在这个世纪末我们的生活标准戏剧性的增长了将近七倍。
2·If you have both the risk variants we discovered on chromosome 20 and the unrelated known variant on the X chromosome, your risk of becoming bald increases sevenfold.
如果你的染色体上有两个基因变异：我们发现的位于20号染色体上的变异和人们以前就知道的X染色体上的变异，您患秃发的风险将增加七倍。
3·The most commonly cited and remembered sequence, in English, is Newton's sevenfold red, orange, yellow, green, blue, indigo and violet.
最普遍援引和记忆中英文顺序，是牛顿的七倍红，橙，黄，绿，蓝，靛，紫。