千禧一代

Generation Y / Millennial Generation

thousand

see 鞦韆|秋千[qiu1 qian1]

joy

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

generation

to substitute / to act on behalf of others / to replace / generation / dynasty / age / period / (historical) era / (geological) eon