normal, ordinary, regular, natural, typical

名詞 natural:

1. someone regarded as certain to succeed
2. a notation cancelling a previous sharp or flat
   同義詞：cancel
3. (craps) a first roll of 7 or 11 that immediately wins the stake

形容詞 natural:

1. in accordance with nature; relating to or concerning nature
2. existing in or produced by nature; not artificial or imitation
3. existing in or in conformity with nature or the observable world; neither supernatural nor magical
4. functioning or occurring in a normal way; lacking abnormalities or deficiencies
5. (of a key) containing no sharps or flats; (of a note) being neither raised nor lowered by one chromatic semitone
6. unthinking; prompted by (or as if by) instinct
   同義詞：instinctive
7. (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
   同義詞：raw, rude
8. related by blood; not adopted
9. being talented through inherited qualities
   同義詞：born, innate
10. free from artificiality
    同義詞：lifelike

1. It is natural that such a hardworking student should pass the exam.
   這么用功的學(xué)生考試及格是很自然的事。
2. It is natural that he should fall in love with such a beautiful girl.
   他愛上那位美麗的姑娘是很自然的事。
3. He's not our natural son we adopted him when he was three.
   他不是我們的親兒子－－他三歲時(shí)我們領(lǐng)養(yǎng)的。
4. It's quite natural that you should succeed.
   你的成功是很自然的事情。
5. I prefer to see animals living in their natural state.
   我寧愿看處于野生狀態(tài)的動(dòng)物。

nat.u.ral

adj.Abbr. nat.（形容詞）縮寫 nat.
Present in or produced by nature:
自然的：存在或產(chǎn)生于自然界的：
例句：
a natural pearl.
天然珍珠

Of, relating to, or concerning nature:
自然界的：屬于、關(guān)于或涉及自然界的：
例句：
a natural environment.
自然環(huán)境

Conforming to the usual or ordinary course of nature:
合乎自然規(guī)律的：按自然界正常的或普遍的規(guī)律發(fā)生的：
例句：
a natural death.
自然死亡

Not acquired; inherent:
非后天的；天生的：
例句：
Love of power is natural to some people.
有些人天生就熱愛權(quán)利

Having a particular character by nature:
天生的：天然具有某種特定性質(zhì)的：
例句：
a natural leader.See Synonyms at normal
天生的領(lǐng)袖參見 normal

Biology Not produced or changed artificially; not conditioned:
【生物學(xué)】 自然狀態(tài)的，非人工的：沒有人為地生產(chǎn)或改變的；不受制約的：
例句：
natural immunity; a natural reflex.
自然免疫；自然反射

Characterized by spontaneity and freedom from artificiality, affectation, or inhibitions.See Synonyms at naive
逼真的：具有自然或非人工的、不做作的和不拘束的特征的參見 naive
Not altered, treated, or disguised:
天然的：未改動(dòng)的、未處理的或未偽裝的：
例句：
natural coloring; natural produce.
天然色；天然產(chǎn)品

Faithfully representing nature or life.
真實(shí)呈現(xiàn)的：真實(shí)地反映自然界或生活的
Expected and accepted:
希望的，接受的：
例句：
.In Willie`s mind marriage remained the natural and logical sequence to love.(Duff Cooper)
.在威廉的心中，婚姻是愛情自然的和邏輯的延續(xù).(達(dá)夫·庫(kù)珀)

Established by moral certainty or conviction:
生來(lái)的：由幾乎是必然的可能性和確信確定的：
例句：
natural rights.
生來(lái)的權(quán)利

Being in a state regarded as primitive, uncivilized, or unregenerate.
未開墾的，未開化的：處于原始的、未經(jīng)文明的或未再生的一種狀態(tài)的

Related by blood:
與血統(tǒng)相關(guān)的：
例句：
the natural parents of the child.
孩子的生身父母

Born of unwed parents; illegitimate:
私生的：由未結(jié)婚的父母而生的；私生的：
例句：
a natural child.
私生子

Mathematics Of or relating to positive integers.
【數(shù)學(xué)】 自然數(shù)的：屬于或和自然數(shù)有關(guān)的
Music
【音樂】
Not sharped or flatted.
沒有高音的，沒有降半音的
Having no sharps or flats.
本位的：沒有高音和降半音的
n.（名詞）

One having all the qualifications necessary for success:
天才人選：具備成功所必須的一切資格的人：
例句：
You are a natural for this job.
你是這項(xiàng)工作的天才人選

One suited by nature for a certain purpose or function:
天賦：天生的適合某一特定目的或功能的人：
例句：
She is a natural at mathematics.
她有數(shù)學(xué)天賦

Music
【音樂】
The sign (_) placed before a note to cancel a preceding sharp or flat.
本位號(hào)：放在音符前面的一個(gè)記號(hào)(_)，用來(lái)消除先前的高音或降半音
A note so affected.
本位聲：由此而產(chǎn)生的音符
Color A yellowish gray to pale orange yellow.
【色彩】 土黃色，淺黃褐色：一種黃灰色到淡桔黃色
Games A combination in certain card and dice games that wins immediately.
【游戲】 骰子牌戲：紙牌和骰子賭博的結(jié)合，可以快速?zèng)Q勝
An Afro hairstyle.
非洲發(fā)型

來(lái)源：
Middle English
中古英語(yǔ)
from Old French
源自 古法語(yǔ)
from Latin n3tôr3lis
源自 拉丁語(yǔ) n3tôr3lis
from n3tôra [nature] * see nature
源自 n3tôra [自然界] *參見 nature

【引伸】
nat.uralness
n.（名詞）