'such as' is primarily used as a conjunction to introduce examples that explain or clarify something mentioned previously in the sentence. It is a way to provide specific instances or illustrations of a general statement.
'such as' is used to introduce one or more examples or specifics of a broader category or concept. It is not used to introduce a comprehensive list but rather a representative sample.
There are many fruits that are rich in vitamins, such as oranges, strawberries, and kiwis.
She has traveled to several European countries, such as France, Italy, and Spain.
The museum features artwork from renowned artists such as Picasso, Van Gogh, and Monet.
'such as' is often confused with 'like.' While both can be used to give examples, 'like' is more colloquial and can imply a comparison, while 'such as' is more formal and directly introduces examples. Avoid using 'etc.' after 'such as' because 'such as' already implies that the list is not exhaustive. It's not necessary to use 'and' before the last item in a 'such as' list, though it's not incorrect to do so.