Collins Chinese Dictionary Plus (3rd edition), 2011:
whimper [ˈwɪmpər]
I n
[c]
呜(嗚)咽声(聲) wūyèshēng
II vi
呜(嗚)咽 wūyè
- without a whimper
(=without complaining) 一声(聲)不吭地 yī shēng bù kēng de