​每个合伙人都被视为其他合伙人的代理

Each partner is viewed as the other's agent. I agree with you.

Each partner is considered as the other's agent. Each partner is regarded as the other's agent.

She is viewed as the best friend of the little girl. Every partner may take part in the management of the partnership business.

This is their right and duty. Every partner may tparticipate in the management of the partnership business.

Every partner may have a hand in the management of the partnership business. You may take part in the plan.