難以啟齒

to be too embarrassed to mention sth (idiom) / to find it hard to speak about sth

difficult (to...) / problem / difficulty / difficult / not good

disaster / distress / to scold

hard to (predict, imagine etc)

old variant of 以[yi3]

old variant of 以[yi3]

abbr. for Israel 以色列[Yi3 se4 lie4]

to use / by means of / according to / in order to / because of / at (a certain date or place)

Qi son of Yu the Great 禹[Yu3], reported founder of the Xia Dynasty 夏朝[Xia4 Chao2] (c. 2070-c. 1600 BC)

to open / to start / to initiate / to enlighten or awaken / to state / to inform

to open one's mouth / to start talking

tooth / CL:顆|颗[ke1]