1. Sonoluminescence is a fascinating phenomenon that occurs when sound waves cause bubbles in a liquid to emit short bursts of light.
声泡发光是一个迷人的现象，当声波导致液体中的气泡发出短暂的光亮时，就发生了声泡发光现象。
2. Scientists have been studying sonoluminescence for years in order to better understand the physics behind this extraordinary phenomenon.
科学家们多年来一直在研究声泡发光，以更好地理解这一非凡现象背后的物理原理。