According to a survey, more than two fifths of the students smoke in a school.
据调查,超过五分之二的学生在校吸烟。
Wall Street, however, may draw some consolation that about two fifths of all Apple revenue is derived from outside the US.
不过,让华尔街略感欣慰的是,Apple五分之二的总收益来自美国以外。
When the price rises over five percent the second troop can be sent to the battlefield. The second troop is two fifths of the money.
如果接下去股价涨了超过百分之五,第二批部队可以投入战斗,数量是总资金量的五分之二。
Some 2.5 billion people – two fifths of the world's population – are now at risk from dengue.
占世界人口五分之二的约25亿人面临罹患登革热危险。