张口结舌

agape and tongue-tied (idiom); at a loss for words / gaping and speechless

surname Zhang

to open up / to spread / sheet of paper / classifier for flat objects, sheet / classifier for votes

to open one's mouth (to eat, speak etc) / to gape / to start talking (esp. to make a request)

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

(of a plant) to produce (fruit or seeds) / Taiwan pr. [jie2]

knot / sturdy / bond / to tie / to bind / to check out (of a hotel)

tongue-tied / unable to speak (out of surprise, embarrassment etc)

used in 喇舌[la3 ji1] to transcribe the Taiwanese word for "tongue"

tongue