one third of

基本解释

Forest fires occur in the park each year; in the large forest fires of 1988, nearly one third of the park burnt.
該公園每年都會發生火災；1988年的大森林火災幾乎燒掉了黃石公園將近三分之一的麪積。
Theoretically, they could still be used for chewing, but in one third of people, they can come in sideways, impacted, or can cause pain and infection.
理論上來說，它們現在仍然可以用於咀嚼，但是大約三分之一的人的智齒從側麪萌出，就可能會導致疼痛和感染。
Generally speaking, more than one third of personal incomes in China will be banked, far higher than the 5% in America.
一般來說，中國人將收入的三分之一以上存進銀行，遠遠超出美國人5%的比例。

It says that nearly one third of about eight hundred bird species in the United States are threatened in some way.
actually our third, but the second one we're going to talk about in terms of formal charge, which is thionyl chloride.
實際上是第三個，但它是第二個,形式電荷的例子，也就是亞硫醯氯。
麻省理工公開課 - 化學原理課程節選
About one-third of Southern white families at one time or another had at least a toehold in slave ownership.
大約三分之一的南方白人家庭,在某一段時期至少都擁有過奴隸
耶魯公開課 - 美國內戰與重建課程節選

The Consumer Reports data covered almost 500 physician practices, one third of which were pediatric practices.
FORBES: Toasters, Blenders, and Physician Reviews-The "New" Consumer Reports