adj.一年两度的

The company releases its financial reports biannually, six months apart.
公司每半年发布一次财务报告。
My dentist's appointment is scheduled for every six months, it's a biannual checkup.
我的牙医预约是每六个月一次，是定期检查。
She receives her salary in biannual increments, twice a year.
她的薪水以每半年一次的方式增加。
The museum hosts a biennial art exhibition, showcasing new talent.
博物馆每两年举办一次艺术展览，展示新晋艺术家的作品。
The membership fee for the club is due biannually, not annually.
该俱乐部的会费是每半年缴纳一次，而不是每年。
The garden festival takes place biennially, alternating between spring and fall.
园艺节每两年举行一次，春季和秋季轮流进行。
The research project was funded biannually over a period of three years.
这项研究项目在三年内分两次年度资助。
The airline offers a biannual loyalty program bonus to its frequent flyers.
航空公司为常旅客提供每半年一次的忠诚度计划奖励。
The government publishes its budget report biannually, providing an overview of economic plans.
政府每半年发布一次预算报告，概述经济规划。
They conduct a biennial survey of the wildlife population in the national park.
他们每两年对国家公园的野生动物种群进行一次调查。