If you are lost in having some （问题）, it might be a good idea to ask for information or help, so it is important to know how to ask for information （礼貌地）and properly.
Usually, people change the way they speak when they talk with different people. It （多数）depends on the person you are speaking to or your relationship with them. （有时）, when you know the people very well, you may talk more （直接）to them. However, if you don't know them very well, it might be better to speak （用）a more polite way like Excuse me, Mr. West, could you please …? What's more, in some situations we might need to spend more time （引导）into a question using such （例子）as Excuse me. I （想知道）if you can help me… or I'm sorry to trouble you, but… before asking for help.
In a word, learning about etiquette（礼仪）is just as important as learning the language itself. And being more polite to （其他人）might help you when you are in trouble.
