extra-
'ekstrә
基本解释
pref. 在...之外, 超出, 越出
[医] 外, 在外, 额外
英文释义
A Latin preposition, denoting beyond, outside of; -- often
used in composition as a prefix signifying outside of, beyond, besides,
or in addition to what is denoted by the word to which it is prefixed.
上一个单词：extra work
下一个单词：extra-adrenal