I would like the tomato soup, please.

would 是情态动词，与 like 搭配构成 would like 短语，表达礼貌的愿望或请求。 like 在这里是动词，意思是“想要”，用于表达愿望或偏好。 would like 是一个常用短语，表示“想要...”，比直接说 I want 更委婉礼貌。