like a kid with a new toy
01
新しいものに夢中, 新しいものに大はしゃぎ
very thrilled or excited about something new that one has got
例
He's been like a kid with a new toy ever since he bought that camera.
あのカメラを買って以来、彼はすっかり夢中だ。
新しいものに夢中, 新しいものに大はしゃぎ
あのカメラを買って以来、彼はすっかり夢中だ。