1
- (of a person) subject to sudden or unpredictable changes of mood or mind（情绪, 思想）多变的, 反复无常的：
his mercurial temperament.
他反复无常的性情。
2
- of or containing the element mercury汞的, 水银的; 含汞的。
3
- (Mercurial) of the planet Mercury水星的。
派生词
mercuriality
/mɜːˌkjʊərɪˈælətɪ/ nounmercurially
adverb词源
late Middle English (in sense 3)： from Latin mercurialis 'relating to the god Mercury'， from Mercurius 'Mercury'. Sense 1 dates from the mid 17th cent.