every two years

基本解释

The trend is that the number of transistors we can fit on a circuit will double every two years.
该定律认为我们能够在一块电路上放置的晶体管数量每两年会翻一番。
Ms. Blanchette said her group wants the history test administered every two years, like the national math and reading exams, instead of every four years.
布兰切特说，协会希望历史考试的频率和全国数学和阅读考试一样，由每四年改为每两年举行一次。
Of this group, 226 are alive and 161 are still active in the study, which requires the men to answer questionnaires every two years and to be interviewed personally every 15 years.
该组研究对象中的226人依然在世，其中161人在研究中仍处于活动状态，即每两年回答一份调查问卷，并在每15年接受一次个人访问。

The competition was first held in two thousand two and has taken place every two years since two thousand five.
Now in the case of The Framingham Study they did bi-annual assessments, every two years brought people into the lab and got very careful measures on them, so a lot of what we initially knew about diet and health, smoking and health, and other things came from The Framingham Heart Study.
弗明汉研究每两年做一次评估,每两年在实验室里对研究对象,进行十分仔细的检测,我们对饮食与健康,吸烟与健康以及其他的了解,最初都来自于弗明汉心脏研究
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But I try to go back every two years.
但我争取每两年回一次家乡。
旧金山的景点 - SpeakingMax英语口语达人

Until recently, professionals were replacing their PCs every two years and many users every three years.
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