launch into

US /lɔːntʃ ˈɪntuː/
UK /lɔːntʃ ˈɪntuː/
"launch into" picture
1.

～し始める, ～に乗り出す

to start doing or saying something with great energy or enthusiasm

:
•
He suddenly launched into a long explanation of his theories.
彼は突然、自分の理論を長々と話し始めた。
•
The choir launched into a powerful rendition of the anthem.
合唱団は国歌の力強い演奏を始めた。
:
embark oncommencebeginstartundertake
:
launch