Denshi Jisho — Online Japanese dictionary

Found 6 sentences.

一所懸命働いて成功した Hard work has brought him success.
一所懸命なってその登った With great effort he climbed up the tree.
一所懸命勉強したそうでなかったら試験落ちていただろう He worked hard; otherwise he would have failed in the examination.
一所懸命勉強さえすればよいそうすれば試験合格するでょう。 You have only to study hard, and you will pass the test.
あなた一所懸命勉強さえすればよいそうすれば試験合格するだろう You have only to study hard, and you will pass the test.
もしもっと一所懸命に働いていたならば金持ちもしれないのだ If he had worked harder, he might be a rich man now.