have/keep (something) up one's sleeve
有杀手锏、秘密武器，留后手

真实性，可靠性：veracity e.g. Officials expressed doubts concerning the veracity of the story.

butter up: 拍马屁、奉承、套近乎、收买人心
例如游戏公司Ubisoft为了宣传新游戏，许诺给自媒体和网红去迪士尼乐园的做法就可以说成to butter up.
https://thatparkplace.com/ubisoft-buttered-up-youtubers-and-influencers-with-trips-to-disneyland-and-boat-tours-to-promote-star-wars-outlaws

真实性，可靠性：veracity
e.g. Officials expressed doubts concerning the veracity of the story.

bag作为动词也有收入囊中的意思
e.g. Cillian Murphy recently won his first Oscar for Best Actor for his role in Oppenheimer, reports Birmingham Live. He also bagged a Golden Globe, a Bafta and a Screen Actors Guild award for his portrayal of theoretical physicist J Robert Oppenheimer in Christopher Nolan's biopic about the father of the atomic bomb.
(source)

https://www.youtube.com/watch?v=TUL29y0vJ8Q

YouTube

Is English just badly pronounced French?

Enjoy this exploration of the French-ness of English. And join the Lingoda Language Sprint to let your language skills bloom this spring. Click my link and use my code ROBWORDS20 for 20€ off! https://try.lingoda.com/RobWords20 In this video I respond to…

翻脸、吵架：fall out
The two fell out over coaching tactics a long time ago.