中文词源
biennial 两年一次的
前缀bi-, 二。词根enn, 年。
英语词源
- 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 -ă- becomes -ĕ-" [Klein]. The noun meaning "a biennial plant" is attested by 1770.
权威例句
- 1. The workers were strongly against the biennial election.
- 工人们强烈反对两年一次的选举.
- 2. It may subsequently become a weak grower and a distinctly biennial cropper.
- 随后会引起树势衰弱,明显两年结一次果.
- 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环周期,植株以后就可正常结果.
- 4. His is a biennial, and one of the most useful pasture plants we have.
- 这是两年生植物, 也是我们最有用的牧草之一.
- 5. European biennial widely cultivated for its blue or violet or white flowers.
- 因其蓝色紫色或白色的花而被广泛种植的欧洲两年生草本植物.
广而告之
1一秒钟记单词小学英语单词记背神器英语一二三四五六年级人教版英语词汇汇总表单词记背神器 单词记忆书单词词汇速记强化训练
【推荐理由】赠运费险，热门商品
【现价】27.9
【下单链接】38￥ CZ3457 5OArdvEMFvn￥