名詞 annual:

1. a plant that completes its entire life cycle within the space of a year
2. a reference book that is published regularly once every year
   同義詞：yearly, yearbook

形容詞 annual:

1. occurring or payable every year
   同義詞：yearly
2. completing its life cycle within a year
   同義詞：one-year

1. The firm has an annual turnover of 75 million.
   這家公司的年?duì)I業(yè)額為7500萬英鎊。
2. Anyone with an annual income of under 5000 may be eligible to apply.
   凡年收入在5000英鎊以下者均可申請(qǐng)。
3. A wage rise of 5% represents an annual increase of 250 for the lowest-paid workers.
   工資提高5%對(duì)收入最低的工人來說相當(dāng)於全年收入增加250英鎊。
4. If you want to join, there's an entrance fee of 20 and an annual membership fee of 10.
   入會(huì)須繳入會(huì)費(fèi)20英鎊，年費(fèi)10英鎊。
5. They have docked us of two days of our annual leave.
   他們已從我們每年的休假里扣除了兩天。
6. The annual premium on my policy is 3000 yuan.
   我的保險(xiǎn)單每年的保險(xiǎn)費(fèi)是三千元。
7. How much is his annual salary?
   他的年薪是多少？
8. Many garden plants are annuals.
   許多觀賞植物都是一年生的。

an.nu.al

adj.Abbr. ann.（形容詞）縮寫 ann.
Recurring, done, or performed every year; yearly:
每年的，年度的：每年循環(huán)或舉行一次的；每年的：
例句：
an annual trip to Paris.
一年一度的巴黎之行

Of, relating to, or determined by a year:
一年的，全年的：一年的，有關(guān)一年的或一年決定的：
例句：
an annual income.
年收入

Botany Living or growing for only one year or season.
【植物學(xué)】 一年生的：只生活或生長(zhǎng)一年或一季的
n.（名詞）
A periodical published yearly; a yearbook.
年刊；年鑒：每年出版一次的期刊；年刊
Botany A plant that completes its entire life cycle in a single growing season.
【植物學(xué)】 一年生植物：全部生命周期為一個(gè)生長(zhǎng)季節(jié)的

來源：
Middle English annuel
中古英語 annuel
from Old French
源自 古法語
from Late Latin annu3lis
源自 后期拉丁語 annu3lis
ultimately from Latin annus [year] * see at-
最終源自 拉丁語 annus [年] *參見 at-

【引伸】
an.nually
adv.（副詞）