biennially例句

This occurs biennially, as in many fruit trees.
象多种果树那样二年发生一次.

This festival takes places biennially.
这个节日两年过一次.

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.