英语翻译turn on their hand

问题描述:

英语翻译
turn on their hand

打开他们的手。

和前面几位有点不同理解
句子意思可能是:
许多美国学生发现他们能够决定学校的午餐菜单了。

turned 被改变
on their hand 由他们决定

turn on their hand打开他们的手

many US students found that their school lunch menus has been turned on their hands
许多美国学生发现,他们的学校午餐菜单已经打开他们的手
turn on their hand 打开他们的手

应该是拼错了一个词.原句应该是 ...been turned on their HEADS.
to turn sth on its head 有彻底改变某件事物的意思.这句话是说许多美国学生发现他们午餐菜谱彻底改头换面了.