1. The orchestra played the piece with a beautiful accelerando, building up to a thrilling climax.
乐队以美妙的加速进行演奏，不断加快速度，最终达到令人激动的高潮。

2. The conductor signaled the accelerando, and the musicians followed, gradually picking up the pace.
指挥员发出加速指令，乐手们随之而动，逐渐加快节奏。