Correct
锁钥
/ suǒyuè /
Strokes
Definition
key and lock/(fig.) strategic place
Example
As a Noun
key; crux; hinge
1
Yǒu
有
guīlǜ
规律
de
的
yǐnshí
饮食
hé
和
shuìmián
睡眠
shì
是
shēntǐ
身体
jiànkāng
健康
de
的
suǒyuè
锁钥
。
Regular diet and sleep are keys to good health.
As a Noun
strategic (military) place/point/thoroughfare