"a quicksilver character, cool and willful at one moment, utterly fragile the next"
以上来源于: WordNet
N-UNCOUNT Quicksilver is the same as . 同mercury [老式]
ADJ Quicksilver movements or changes are very fast and unpredictable. 瞬息万变的 [ADJ n]
...her quicksilver changes of mood.
...她瞬息万变的情绪变化。
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