飛び込む

(1)plunge into water; "I was afraid to dive from the board into the pool"

(2)水の中に飛び込む

(3)swim under water; "the children enjoyed diving and looking for shells"

(4)水中で泳ぐ

(5)begin with vigor; "He launched into a long diatribe"; "She plunged into a dangerous adventure"

(6)元気よく始める

(1)He launched into a long diatribe

(2)彼は、長い間の痛烈な非難に対し議論を始めた

(3)She plunged into a dangerous adventure

(4)彼女は危険な冒険に突入した