- volte-face
[volte-face 词源字典]
- a reversal of opinion, 1819, French (17c.), from Italian volta faccia, literally "turn face," from volta, imper. of voltare "to turn" (from Vulgar Latin *volvita, from Latin volvere "to roll;" see volvox) + faccia (see face).[volte-face etymology, volte-face origin, 英语词源]