1. He is a complicated man—moody, mercurial, with a melancholy streak. 他是一个性格复杂的人——喜怒无常，反复多变，忧郁寡欢。
2. It was a feat reflective of what has been surprisingly consistent play from perhaps the league's most mercurial player. 这就是这位或许是联盟中最灵活的摇摆人最近令人惊讶地稳健表现的其中一个反应吧。
3. Always remember that weather markets are mercurial, extreme in price fluctuations, and very difficult to master. Forecasts of weather beyond a few days are not reliable. 始终记住，气候市场是变幻无常，价格变化剧烈，极难掌握地市场。几天之外地天气预告就没有可靠。
英英解释
adj.
1. liable to sudden unpredictable change
2. relating to or under the (astrological) influence of the planet Mercury
3. relating to or having characteristics (eloquence, shrewdness, swiftness, thievishness) attributed to
4. relating to or containing or caused by mercury
