呆牛英语特点：及时性 、 热点性 、 新潮流行性和趋势性。例句和解释原汁原味。欢迎留言和交流学习。
noun [ U ] /ˌrʌʃ.ən ruːˈlet/ （Cambridge）
1.a very dangerous game of chance where each player aims at their own head with a gun that has one bullet in it and five empty chambers (= spaces where bullets could go)
2. the action of taking very serious risks with something important
Dumbfoundingly, those gathered on the White House South Lawn weren’t tested for the coronavirus in advance, and only a few in sight wore masks through the Thursday night event. The privilege of being invited to take a physical seat for the “convention finale” was the coronavirus version of Russian roulette: a choice between demonstrating loyalty to the president and risking a bullet from the “virus.” （Washington Post）
practical and determined；realistic and determined; tough-minded.
The New York Times profiled a swath of Trump's steadfast supporters who "outlined myriad reasons for wanting to re-elect him, ranging from the pragmatic … to a gut-level attraction to his hard-nosed personality."
名词：画家 (绘画等用的) 气笔，喷枪; 用压缩空气喷绘的装置。
AP Analysis: Trump’s convention aims to airbrush his tenure
frighten/scare sb out of their wits
(also frighten/scare the wits out of sb)
to make someone very frightened
Biden needs to distance himself from the rioters and agitators and troublemakers who are scaring people out of their wits. And Trump and his own pot-stirring allies need to publicly recognize that protesting police violence against unarmed Black people is legitimate and well within our traditions. (Washington Post)
not one or none at all; used for emphasis
Nevertheless, Trump may have turned his listless campaign around with a convention that contrasted starkly — and by degrees, better — with the Democratic version. It helps sometimes to go second. Trump brought real people and applause to his convention with nary a celebrity, rock star or Hollywood star in sight. None would have come if invited, but such absences are of little concern to potential voters who saw themselves in a series of personal stories that illustrated conservative principles. (Washington Post)
in the know
If you are in the know about something, especially something that is not known about or understood by many people, you have information about it.
知情; （尤指） 熟悉内幕，掌握内情
The chasm between expectations born of polling and expectations born of instinct remind us that there is in-the-know, and then there is in-the know about the rest-of-America. (Washington Post)