Translation of "Cracking" in Spanish

I'm cracking up.

- Me troncho de risa.
- Me carcajeo.

They were cracking up.

Se estaban riendo a carcajadas.

Let's get cracking at 8.

Empecemos a las ocho.

The cracking sound startled us.

Nos sobresaltó el chasquido.

His voice cracking and his hands trembling,

su voz se quebraba y sus manos temblaban,

cracking down on corruption  and illegal trade with Britain.

reprimiendo la corrupción y el comercio ilegal con Gran Bretaña.

Like cracking open a textbook and reading for four hours

como abrir un libro y leer por horas

- Let's start!
- Let's get cracking!
- Let's start.
- Let's get started!
- Let's begin!
- Have at it!

- ¡Empecemos!
- Comencemos.