1630s, "lasting three years;" 1640s, "occurring every three years," with -al (1) + Latin triennium "three-year period," from tri- "three" (see tri-) + annus "year" (see annual). For vowel change, see biennial. As a noun, 1630s. Related: Triennially.
雙語(yǔ)例句
1. The triennial Council on Legislation affects all club and district activities.
立法案可能是由扶輪社及地區(qū)提交下一屆的立法會(huì)議.
來自互聯(lián)網(wǎng)
2. We signed a triennial contract yesterday.
昨日簽了一項(xiàng)三年的合約.
來自互聯(lián)網(wǎng)
3. Ming Wanli three decades ( 1607 ), held in Beijing, the national triennial imperial examinations.