biennially的例句（biennially在句子中的用法）

• Expert proposal, pillow core at least biennially is changed, bask in every week. 专家建议, 枕芯至少每两年换一次, 每周都晒一次.
• This festival takes places biennially. 这个节日两年过一次.
• This occurs biennially, as in many fruit trees. 象多种果树那样二年发生一次.