abbreviation for today I learned: used in writing, for example on social media, before giving interesting new information

TIL "Hey Jude" and "Bohemian Rhapsody" were both recorded using the same piano. 今天我听说，《嘿，朱迪》和 《波西米亚狂想曲》这两首歌都是用同一架钢琴伴奏录制的。