chaperon
n
(esp formerly) older person, usu a woman, who looks after a girl or a young unmarried woman on social occasions (尤指旧时)在社交场合照顾少女或未婚女子的年长者(通常为妇女); 年长女伴; 保护人. chaperon, v [Tn]
act as a chaperon for (sb) 当(某人的)年长女伴.
🗣️ 情景例句
Hello, Alexandra.
你好 Alexandra。
I've got a lot of things to do before I can leave.