free form
noun /ˈfriː fɔːm/
/ˈfriː fɔːrm/
(also free morpheme)
(linguistics- a unit of language that can be used by itself
自由语素；自由形式；自由形位 - The plural ‘s’ is not a free form, as it must always be attached to a noun.
表示复数的 s 不是自由语素，必须附着于名词。
- The plural ‘s’ is not a free form, as it must always be attached to a noun.