
Age group in Chinese is 年龄段(nian’ling’duan)。Baby in Chinese is 婴儿(ying’er)。Kids in Chinese is 儿童(er’tong)。Teenager/adolescent in Chinese is 青少年(qing’shao’nian)。Young adults in Chinese is 青年(qing’nian)。Middle-aged adults in Chinese is 中年(zhong’nian)。Elderly in Chinese is 老年(lao’nian)。
Each word is going to be said once in English and five times in Chinese.