羞于启齿 xiū yú qǐ chǐ

DEFINITIONS

  1. to be too shy to speak one's mind (idiom)

CHARACTERS

羞 xiū disgrace, shame; ashamed; shy
于 yú in, on, at; go to; surname
启 qǐ open; begin, commence; explain
齿 chǐ teeth; gears, cogs; age; simplified form of the KangXi radical number 211