- (especially North American English)
a small bag or case that you carry onto a plane with you （可随身携带上飞机的）小包，小行李箱 - [usually singular] (British English, informal)
a display of excitement, anger or silly behaviour over something unimportant （对小事的）大惊小怪，歇斯底里发作，愚蠢的举动