He watched with mouth agape.是什么意思？

He watched with mouth agape.

他张着大嘴注视着.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

watched

vt. 注视，注意（watch的过去式与过去分词形式）；

例句
He watched Karl run across the street to Tommy.
他看着卡尔向街对面的汤米跑去。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

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。

agape

adv. 张口发呆地，目瞪口呆地；n. 神对世人的爱；

例句
The relationship of agape and mutual love is dialectic.
圣爱和互爱之间存在着辩证关系.