介词是英语中的重要语法成分，用于表示名词、代词、动词等之间的关系。常见的介词有about、above、across、after等50个。理解这些介词的用法和搭配可以帮助我们更准确地表达意思，是掌握英语语法的重要一步。
- about
- above
- across
- after
- against
- along
- among
- around
- as
- at
- before
- behind
- below
- beneath
- beside
- between
- beyond
- by
- down
- during
- except
- for
- from
- in
- inside
- into
- like
- near
- of
- off
- on
- onto
- out
- outside
- over
- past
- since
- through
- throughout
- to
- toward
- under
- underneath
- until
- unto
- up
- upon
- with
- within
- without
