I have informed him by word of mouth.是什么意思？

I have informed him by word of mouth.

我已口头通知他了.

have

aux. 用以构成完成式及完成式的不定式，表示已经…；vt. 有，具有，拿，取得，从事，必须，不得不；n. 〈口〉有产者，有钱人，富国，〈英俚〉欺骗，诈骗；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

informed

adj. 了解情况的，见多识广的，有情报根据的，消息灵通的；v. 告诉( inform的过去式和过去分词)，(inform oneself)使了解；

例句
Dan informed her that he would be out back on the patio cleaning his shoes...
丹告诉她说他要去房子后面的露台上擦鞋。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

word

n. 单词，话语，诺言，消息；vt. 措辞，用词，用言语表达；vi. 讲话；

例句
...the magic that still attaches to the word 'spy'.
“间谍”一词依然具有的神奇魅力

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

mouth

n. 口，出入口，传闻；vt. 装腔作势地说，喃喃地说，心不在焉地说，言不由衷地说；vi. 装腔作势说话；

例句
She stood looking at Carmen with her mouth agape.
她站着，张大了嘴看着卡门。