an electronics / an advertising / a law firm

电子公司/广告公司/律师事务所

The city walls are as firm as rock.

城墙坚如磐石。

Make sure the ladder feels firm before you climb up.

爬梯子前要确保它的稳固。

He is firm in his purpose.

他意志坚定。

Go ahead for a firm goal, and the whole world will let you go!

向着坚定的目标前进，整个世界都会为你让路！

Have a firm handshake.

握手要坚实有力。

Please stand firm and hold the handrail.

站稳并扶好扶手。

Always hold firm to your beliefs.

始终要坚持自己的信仰。