Usage of 1 and stay away from it
Keep away means "away from …, not in …", which is equivalent to not in.
Common sentence patterns:
The police warned people not to approach.
The police warned people not to approach.
Don't go away when the roll call is made.
Don't go away when the roll call is made.
2. the usage of 2.keep at
Keep at means "keep doing …, keep doing …".
Common sentence patterns:
Although he was ill, he kept on studying.
Although he was ill, he kept on studying.
3. Keep the usage backward
Keep behind means "put ... behind ...".
Common sentence patterns:
I put the urgent letter behind the clock to remind me to reply.
I put the important letters behind the clock so as not to forget to reply.
Bilingual example:
1, Yes, I can? Keep? Secret.
Yes, I can keep a secret.
2. Sit up straight, and then? Keep? Put your hands on the table.
Sit up straight and put your hands on the table.
Are these foods helpful? Keep? Blood is more alkaline and protects bone health.
These foods can help maintain blood alkalinity and protect bone health.
Now they can, which is very helpful? Keep? Variation in the cycle.
But now it can, which also helps to keep the cycle of mutation.
Now I drink a lot of water? Keep? My kidney is healthy.
Now I drink enough water to keep my kidneys healthy.