triennial แปลว่า
- adj. ซึ่งมีขึ้นทุกสามปี
ประโยค
Source: Triennial Central Bank Survey, 2010
According to data by the Bank for International Settlements triennial report of 2016
39th TRIENNIAL ASSEMBLY Statement by H.E. Arkhom Termpittaypaisith, Minister of Transport of Thailand