咬紧牙根 yǎo jǐn yá gēn

DEFINITIONS

  1. see 咬緊牙關|咬紧牙关[yao3 jin3 ya2 guan1]

CHARACTERS

咬 yǎo bite, gnaw
紧 jǐn tense, tight, taut; firm, secure
牙 yá tooth, molars, teeth; serrated
根 gēn root, base(d on); foundation