biennial
英 [ba?'en??l]
美[ba?'?n??l]
- adj. 兩年一次的
- n. [植] 二年生植物
GRE暢通詞匯
詞態(tài)變化
復(fù)數(shù):?biennials;副詞:?biennially;
中文詞源
biennial 兩年一次的
前綴bi-, 二。詞根enn, 年。
英文詞源
- biennial (adj.)
- "lasting for two years" (1620s); "occurring every two years" (1750), from Latin biennium "two-year period," from bi- (see bi-) + annus "year" (see annual). The vowel change is "due to the Latin phonetic law according to which the unaccented and closed radical syllable of the second element of compounds, original -?- becomes -?-" [Klein]. The noun meaning "a biennial plant" is attested by 1770.
雙語例句
- 1. The workers were strongly against the biennial election.
- 工人們強烈反對兩年一次的選舉.
來自《簡明英漢詞典》
- 2. It may subsequently become a weak grower and a distinctly biennial cropper.
- 隨后會引起樹勢衰弱,明顯兩年結(jié)一次果.
來自辭典例句
- 3. If the biennial cycle is broken for one year the trees normally bear annual crops subsequently.
- 如果一年里打破了大小年的循環(huán)周期,植株以后就可正常結(jié)果.
來自辭典例句
- 4. His is a biennial, and one of the most useful pasture plants we have.
- 這是兩年生植物, 也是我們最有用的牧草之一.
來自辭典例句
- 5. European biennial widely cultivated for its blue or violet or white flowers.
- 因其藍色紫色或白色的花而被廣泛種植的歐洲兩年生草本植物.
來自互聯(lián)網(wǎng)