请问、劳驾、借光的用法有什么样的区别?

问题描述:

请问、劳驾、借光的用法有什么样的区别?
我是外国留学生.上面三个词语的用法有什么样的差异?

请问:是问别人问题时的礼貌用语.类似的情况下,英语一般用:Excuse me, may I ask you ...?
劳驾:是请别人做某事时的客套话,类似:麻烦您做…… 类似的情况下,英语一般用:Could you ...(for example: Could you please come over here?劳驾您过来一下好吗?)
借光:是有人挡你的路了,你想让人让一下以便你过去时的礼貌用语. 类似的情况下,英语一般用:excuse me.就可以了.
请问:a polite expression used when you wanna ask someone a question.
劳驾:a polite expression used when you ask someone to do something for you.
借光:a polite expression used when someone is in your way and you want him/her to move a bit so that you can pass.