firmly

Make sure the rope is firmly attached before attempting to climb down.

在顺着绳子往下爬之前，确保绳子已系牢。

He shook my hand firmly and climbed into the taxi.

他用力握了握我的手，然后钻进了出租车。

"You're not going to the party and that's that!" she said firmly.

“你不能去参加聚会，就是这样！”她语气坚决地说。