Definition
to begin speaking or critiquing something with significant intensity or fervor
發隨即議（批評）
She launched into a critique of the new project during the meeting, expressing her doubts.
她在會議上對新項目發起猛烈批評，表達了她的疑慮。
As soon as he heard the topic, he launched into his opinions with enthusiasm.
他一聽到這個話題，就熱情洋溢地發表了自己的意見。
He always loves to launch into heated discussions during dinner.
他總喜歡在晚餐時進行激烈的討論。