“伺候用餐”可以翻译为 “serve at meals” 或者 “wait on someone during meals” 。
“serve at meals” 强调在用餐过程中提供服务这一行为。
“wait on someone during meals” 更侧重于描述在用餐期间对某人进行照料、服务 。
例如：The butler always serves at meals with great attention to detail.（管家总是细致入微地在用餐时提供服务 。）
She was used to waiting on her elderly parents during meals.（她习惯了在用餐时照料年迈的父母 。 ）