I have to play four sharps in this piece .

我在这首曲子里要奏四个半音。

A difficult piano piece full of sharps and flats .

有很多升半音、降半音难度很大的钢琴曲。

All sharps should be dealt with promptly and safely .

所有尖锐物品应立即与安全的处理掉。

Dissertation on prevention of sharps injuries among .

论文论锐器损伤在预防。

All your sharps , all your flats .

各种音调都有。