launch into
phrasal verb.phrasal verb. to start doing or saying something with a lot of energy or enthusiasm. You often use this when someone begins a long story or a strong complaint.
phrasal verb. to begin an activity, speech, or narrative with sudden energy or force. Typically takes a noun phrase or gerund as an object.
She launched into a long story about her trip.
The manager launched into a passionate speech about the company's future goals.
Without waiting for an introduction, the professor launched into a complex critique of the prevailing economic theories, leaving the audience momentarily stunned.
The phrasal verb is transitive and requires a direct object.
He launched the storyHe launched into the storyThe verb requires the preposition 'into' to connect the action to the topic.