Slang makes language more creative, unique, fun, and interesting. However, it can also get you in trouble, cause an embarrassing situation, insult someone, make someone angry, or make someone judge you in a negative way – basically, slang can also be dangerous. Of course, if used correctly, then you have nothing to worry about. The question is: what is “correct?”
俚语能让语言变得更有创意、更独特、更好玩、更有趣。然而，它也可能让你惹上麻烦，造成尴尬的局面，让对方以为你是在侮辱他，让对方不开心，或者让别人以负面的方式看待你——基本上来说，俚语可能也很危险。当然，如果使用得当，那么你就没有什么可担心的啦。问题是：如何使用才是正确的呢?
俚语不适用于正式场合
These are usually words that English textbooks do not teach, because in formal situations, they are not appropriate. This means it will be more difficult to decide in which situations you could and should use them. You may hear or find it OK to use them in dorm rooms, on the street among friends, in movies, at parties, and so on, but it may not be appropriate in classroom, office, in front of parents, guests, children, and the like.
你通常不会在英语教科书上学到俚语，因为在正式场合中，俚语是不适用的。这就意味着你会更难判断在哪种场合能去使用俚语。你可能会在宿舍、和朋友在路上、看电影、派对... 等等场合中听到一些俚语，但在教室里、公司里、家长、客人、孩子面前，可能就不太合适说俚语。
It is important to pick the time and place to use it. You must be sure to understand exactly how to use it and in what social context, otherwise it will be awkward, embarrassing, and dangerous. People who use vulgar words, especially, in the wrong social situations may be considered uneducated, immature, low class, or immoral.
选择适当的时间和地点来使用俚语是很重要的。你一定要了解在什么样的社交场合下，如何正确使用它，否则当你说出来之后只会变得不自然、尴尬或者会很危险。 如果你用了很粗鲁的词，尤其是在错误的社交场合下，别人可能会把你当成是没教养、不成熟、低级的又没品的。
与宗教相关的俚语，慎用！
Likewise, many curses associated with religion, such as God, Jesus, Lord, and so on, should not be said around westerners unless you are absolutely sure it will not offend them. Because many religions believe, using their Lords name in a bad context is extremely offensive. So if you want to learn and use slang, please make sure you fully understand the time and place to use it appropriately, otherwise it can be dangerous!
相同的，许多与宗教有关的词，比如 God, Jesus, Lord... 等等，这些都不应该在外国人面前说，除非你十分确定不会冒犯到他们。因为许多宗教认为，在一些不恰当的时机提到他们主的名字是非常无礼的。所以，如果你想学习和使用俚语，要确保你是在正确的时机和地点去合理地使用它，否则真有会有危险！
