才能(さいのう)を伸(の)ばすto develop one's ability

選手(せんしゅ)の才能(さいのう)を伸(の)ばすのが監督(かんとく)の仕事(しごと)だ。

The coach's job is to develop the athletes' talents. {to develop one's ability}

両親(りょうしん)は僕(ぼく)の才能(さいのう)を伸(の)ばすために教育(きょういく)をしています。

My parents are educating me in order to develop my abilities. {to develop one's ability}

才能(さいのう)を伸(の)ばすためにピアノを習(なら)わせたが、失敗(しっぱい)した。

I had her learn piano to develop her ability, but it was a failure. {to develop one's ability}

先生(せんせい)たるもの、子供(こども)たちの才能(さいのう)を伸(の)ばすことができるべきです。

As a teacher, one should be able to develop the talents of children. {to develop one's ability}

本当(ほんとう)に才能(さいのう)を伸(の)ばしたいのなら、血(ち)の滲(にじ)むような努力(どりょく)は必要(ひつよう)不可欠(ふかけつ)です。

If you really want to develop your ability, blood, sweat, and tears kind of effort is absolutely necessary. {to develop one's ability}