after- 表示……之后，noon-表示中午。所以afternoon=中午以后=下午。
noon = n.中午,正午
例句：
A day goes through daybreak, morning, noon, afternoon, evening and midnight.一天经过拂晓,上午,正午,下午,傍晚和午夜.
类似的词根词缀还有：
nor = conj.／ad.也不,也没有
No, nobody's body is noble, nor is his.不,没有任何人的躯体是高贵的,他的也不是.
norm = n.准则,规范,准则,平均数n.规范,行为准则[norm=rule,norm,表示"规则,规范"]
normal = a.正常的,普通的;正规的,标准的He did not seem normal.他精神似乎不正常.a.正常的(norm+al→有规范的→正常的)
[norm=rule,norm,表示"规则,规范"]
normalization = n.(normalisation)
正常化,标准化n.正常化(mormal正常的)
north = n.北,北方a.北方的,北部adj.向北方,在北方
例句：
Henceforth, the north wind is worthless to the northerners.从今以后,北风对北方人没有益处.
northeast = n.东北a.东北方的ad.向东北,在东北
例句：
The bird nests only in northeast, northwest, southeast and southwest lest it be found.此鸟只在东北,西北,东南和西南筑巢,以免被发现.
northeasten = a.东北方的[-ern①表形容词,"…方向的"②表名词,"…场所"]
northeastern = 东北方的-ern
1.表形容词"…方向的"2.表名词"…场所"]
(1)
表形容词,”…方向的” eatern ：东方的，westem ：西方的，southern ： 南方的，northeastren a 东北方的
satern n 盐场(salt盐)
northern = a北方的,北部的
She has traveled in most northern countries.她曾游历过北方诸国.
northward = a向北的(north北)
northwest = n.西北方,西北部a.西北的ad.向西北,在西北
如：
The bird nests only in northeast, northwest, southeast and southwest lest it be found.此鸟只在东北,西北,东南和西南筑巢,以免被发现.
afternoon词根词缀 扩展
afternoon 词根是noon，词缀是after
例句
1.
Our system should be up by this afternoon.
到今天下午，我们的电脑系统应该运行起来了。
2.
Where were you on the afternoon of May 21?
5月21日下午你在哪里？
3.
I saw her one afternoon last week.
我在上周的一个下午见到了她。
afternoon词根词缀 扩展
这个单词意思是:下午。
由词根noon和词缀after构成。
