undecennial
英 美
adj. 十一年的
英文词源
undecennial (adj.)
"occurring every 11 years," 1858, in reference to solar activity cycle, from Latin undecim "eleven" + ending from biennial, etc.
带undecennial字词语
带undecennial字成语
英 美
adj. 十一年的
undecennial (adj.)
"occurring every 11 years," 1858, in reference to solar activity cycle, from Latin undecim "eleven" + ending from biennial, etc.