Correct
牙口
/ yá kǒu /
Strokes
Example
As a Noun
age of a draught animal ［as shown by the number of its teeth］
1
Kàn
看
yákǒu
牙口
look at a draught animal's teeth to determine its age
As a Noun
condition of (an old person's) teeth
2
Nín
您
zhème
这么
dà
大
niánjì
年纪
,
yákǒu
牙口
kě
可
bucuò
不错
。
You certainly have good teeth for your age.