also gayly, "with mirth and frolic," late 14c., from Middle English gai (see gay) + -ly (2). "The spelling gaily is the more common, and is supported by the only existing analogy, that of daily" [OED].
例句
1. Magda laughed gaily. 玛格达开心地笑了起来。
2. a gaily decorated room 装饰华丽的屋子
3. Gaily - dressed ladies added colour and variety to the scene. 身穿鲜艳服装的妇女使场面更为绚丽多采.