occurring every two years; biennial

listen to the pronunciation of occurring every two years; biennial
İngilizce - Türkçe
İngilizce - İngilizce
biyearly
biannual

The Earth Charter opens a new phase.... (Mikhail Gorbachev, as quoted in The Earth Charter Initiative, Biannual Report 2002–2003, Earth Charter International Secretariat, http://www.earthcharter.org/files/resources/Biannual%20Report.pdf, p 10,...).

occurring every two years; biennial