Millions of US pupils aged from 5 to 11 must put their right hands across their chests and recite the Pledge of Allegiance in front of the US national flag every morning before classes start.

• 美国数以百万计五岁至十一岁的小学生，每天早上上课前，都必须右手放在胸前，面对美国国旗朗诵效忠誓约。