We hold our big sale biannually .

我们半年举行一次大型销售会。

A female giant panda produces about one to two cubs biannually , so strengthening the wild population is a difficult and slow process .

一个雌性大熊猫每两年约生产一至两只幼崽，因此，增大野生种群是一个艰难而缓慢的过程。

Since the war , important festivals have been held annually or biannually in berlin , london , moscow , prague and czechoslovakia .

二战以来，每年或每两年便有重要的电影节在柏林，伦敦，莫斯科。布拉格和捷克斯洛伐克举行。

Aircraft makers from around the world gather biannually at the farnborough international air show to display their latest technologies and secure orders for their products .

全球各地的飞行器制造商齐聚两年一度的范堡罗国际航空航天展览会，他们展示自己最先进的技术，并且争得产品订单。