举手回答老师用英语怎么说

"Raise your hand" 是一个常见的表达，意思是举手。这个短语起源于英语中的动词 "raise," 它的意思是"举起"。"Hand" 是指"手"。
举例：
If you have a question, please raise your hand. (如果你有问题，请举手。)
Please raise your hand if you understand. (如果你理解了，请举手。)
I raised my hand to get the teacher's attention. (我举手引起老师的注意。)