déclencher

Si je le vois rentrer, je déclencherai un flash.	If I see him coming back, I'll signal with a flashbulb.
Je déclencherai l'alarme en voyant les gars d'incendie criminel.	I'll sound the alarm when I see the arson guys.
Je ne déclencherai pas de crises.	I'll try not to have a crisis.

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