英语语法分析

You will need to have a routine biannual examination.

你需要做一年两次的常规检查。

《柯林斯英汉双解大词典》

The airfield, less than an hour's drive west of London, is home to Britain's biannual airshow.

该机场在伦敦以西，不到两小时的车程，是英国双年航空展的举办地。

The largest is the Southeast Asian Games, a biannual festival for the nations of Southeast Asia.

最大的是东南亚运动会，主要针对东南亚国家，每年两次。