| 钢铁 | gāng tiě | steel | |
| 钢琴 | gāng qín | piano; Classifiers: 架 | |
| 钢材 | gāng cái | steel (as raw material); steel sheets, bars, tubes, ingots, wire etc | |
| 钢筋 | gāng jīn | steel reinforcing bar | |
| 钢笔 | gāng bǐ | fountain pen; Classifiers: 支 |
| 1 | I write with a pen. | |
| 2 | Can she play the piano? | |
| 3 | Mom teaches me to play the piano. | |
| 4 | She repeatedly practiced the piano piece. | |
| 5 | She is learning to play the piano. |
