Keep balance, must balance!

保持平衡，一定要平衡！

How to keep balance diet?

如何保持平衡的饮食？

You'd better keep balance of your diet.

你最好是保持均衡的饮食。

She holds his arm firmly to keep balance.

她紧紧地抓着他的胳膊来保持平衡。

The child couldn't keep balance on his new bicycle.

小孩骑车不能保持平衡。