名詞 quicksilver:

1. a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
   同義詞：mercury, hydrargyrum, Hg, atomic number 80

形容詞 quicksilver:

1. liable to sudden unpredictable change
   同義詞：erratic, fickle, mercurial

1. A politician is like quicksilver; if you try to put your finger on him, you will find nothing under it.
   政客好比水銀; 當你要抓住他(的過錯)的時候，你會發(fā)覺并未抓到什么東西。

quick.sil.ver

n.（名詞）
See mercury
參見 mercury
adj.（形容詞）
Unpredictable; mercurial:
不可預測的；反復無常的：
例句：
.a quicksilver character, cool and willful at one moment, utterly fragile the next.(Sven Birkerts)
.一個性情多變的人物，有時冷漠任性，而一會兒則變得很脆弱.(斯文·伯克斯)

來源：
Middle English
中古英語
from Old English cwicseolfor
源自 古英語 cwicseolfor
cwic, cwicu [alive] * see g wei-
cwic, cwicu [活的] *參見 g wei-
seolfor [silver] translation of Latin argentum vovum * see silver
seolfor [銀] 拉丁語 argentum vovum的翻譯 *參見 silver