[chǐ]
[名]
(牙; 牙齿) tooth
molar [incisor, canine, milk] tooth
臼[门, 犬, 乳]齿
dare not mention a subject
不敢启齿
grin
露齿而笑
(物体上齿形的部分) a tooth-like part of anything
the teeth of a saw
锯齿儿
the teeth of a comb
梳齿儿
[书] (年龄) age
seat guests according to seniority
序齿
very young
稚齿
[动]
[书] (说到; 提起) mention
do not regard as a human being
不齿人类
not worth mentioning; of no importance
不屑齿及