哑然失色

flabbergast

哑的英语翻译：

alalia; dumb; hoarse; husky; mute
【医】 alalia; dumbness; mutitas; Saint Zachary's disease
St. Zachary's disease

然的英语翻译：

but; correct; however; like that; right; so

失色的英语翻译：

be eclipsed; lose countenance; pale; turn pale
【医】 decoloration; decolorize