How to use set off? thank you

Set off English [set? F] beauty [s? t？ f]

Set out; (cause) to begin; Reason; light

[Example] This triggered a building boom.

This triggered a wave of cell construction.

2.

This report triggered a vaccine panic that continues to this day.

This report has caused people to be afraid of vaccination until now.

3.

This triggered a wave of immigration.

At this time, there was a wave of immigrants.

4.

We set off along a path beside the valley.

We started from a path by the canyon.

5.

Accompanied by Zhou, we went to Mao's residence by China bus.

Accompanied by Zhou, we drove to Mao's residence in China.