1590s, "to wash a building surface with white liquid," from white (adj.) + wash (v.). Figurative sense of "to cover up, conceal, give a false appearance of cleanness to" is attested from 1762. Related: Whitewashed; whitewashing. The noun is recorded from 1690s; in the figurative sense from 1851. The earlier verb was whitelime (c. 1300).
权威例句
1. The report's findings were condemned as total whitewash.
这份报告最后的结论被谴责为彻头彻尾的粉饰。
2. The opposition claimed the report was a whitewash.
反对派声称这份报告文过饰非。
3. They tried hard to whitewash themselves.
他们力图粉饰自己.
4. What he said was a load of whitewash.
他所说的是一大堆粉饰之词.
5. He pledged that there would be no whitewash and that the police would carry out a full investigation.