ASK - How To export DOT address in Trust to Polkawallet?

Hi there everyone, I want to use Polkawallet for DOT staking purpose. How do we export our DOT address in Trust into their wallet?, so I dont need to create another address (as this will consume 1 DOT for generating new address wallet in their chain).

I’ve already tried mnemonic phrases, it succeed but showing different address than mine address in Trust. Of course theres no balance there, so I delete the account in Polkawallet.

Many thanks for any help!