In one classroom for 9- and 10-year-olds at a Jerusalem school,a boy tried on a gas mask with the help of the soldier instructor.是什么意思_In one classroom for 9- and 10-year-olds at a Jerusalem school,a boy tried on a gas mask with the help of the soldier instructor.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句