yǎo
咬紧牙关
yǎo jǐn yá guān
Grit one's teeth; clench one's teeth
用嘴咬住绳子
yòng zuǐ yǎo zhù shéng zi
Bite and hold the rope with one's mouth
让蛇咬了一口
ràng shé yǎo le yì kǒu
Got bitten by a snake