adj.清楚的；簡單的；坦白的；平常的；樸素的；純的
n.平原；廣闊的區(qū)域
adv.完全地；純粹地
It was plain to everyone that she was not happy. 她并不幸福,這是明擺著的事實。
The restaurant serves plain home-made meals. 那個餐館供應(yīng)簡單的家常菜。
She was admired for her plain speaking. 她說話坦白,這一點令人欽佩。
Most people see great men as wizards; however, they are just plain people. 大多數(shù)人覺得偉人是奇才,然而,他們只不過是平常人。
I drink only pure water after taking exercises. 運動之后我只喝純凈水。
用作名詞 (n.)The wind whipped across the plain. 大風(fēng)掃過平原。
The mountain stands tall and upright on the vast plain. 這座高山屹然矗立在廣闊的平原上。
Shanghai in Yangtze Delta alluvial plain, low-lying, the network of waterways covered with vast shoals resources. 上海位于長江口沖積平原，地勢低洼，河網(wǎng)密布，擁有廣闊的灘涂資源。
用作副詞 (adv.)Beck went plain crazy with anger on the day when he received his Dear John from his girlfriend. 貝克收到他女朋友的絕交信的那天簡直都氣瘋了。
That is just plain stupid. 那簡直是愚不可及.
plain sailing一詞表示“一帆風(fēng)順”，源自航海詞匯，指采用簡便的平面海圖的導(dǎo)航。
adj.(形容詞)plain作形容詞的基本意思是“清晰的,明白的”,指能被人清楚地看到或聽到。plain作“樸素的,簡單的,平常的”解時,可指衣著樸素,缺乏裝飾; 也可指人的相貌平常,沒有特別引人注目之處。plain作“坦白的,坦率的,真誠的”解時,一般指人的行為和思想。plain作以上解釋時在句中可用作定語或表語。
plain還可作“完全的,十足的,徹底的”解,在句中只用作定語,無比較級和最高級形式。
當(dāng)plain的主語是動詞不定式或that從句時,常用于形式主語結(jié)構(gòu)。
n.(名詞)plain用作名詞意思是“平原”,指起伏極小,海拔較低的廣大平地,常用作復(fù)數(shù)形式。
