nobody could learn to swimming without jump into

nobody could learn to swimming without jump into
nobody could learn to swimming without jump into

nobody could learn to swimming without jump into
不试着跳进水里永远都学不会游泳!

没有人能够不跳进水，就能学会游泳。

字面翻译是：“没有人能学会游泳而不用跳入水中。”
引申义应为：“实践出真知。”