Briton

 英国人 stop using British people

sales pitch

 推销用语 n.
 an aggressive ~ 

news conference

 新闻发布会 n.

alignment

 排成直线；一致性 n.
 align 与...对齐  v. 
 make sure the shelf is aligned with the top of the cupboard.

withdrawal

  退出 n.
  withdraw/~ from sth.

orderly

  adj.

status-quo

  维持现状的 adj. 
  status quo   n.

barely

   只 adv. 形容少

rubber-stamp

  (未经慎重考虑）正式通过 v.
  rubber stamp    橡皮圆章 n.

endorse

  赞同（公开，正式） v.
  i fully endorse everything the President has said.

open the door to ... = make ... possible

  使...成为可能

make the case for sth.

  为某事陈述论据；阐明...是最佳的

treaty VS deal VS pact VS package VS outline

  seal a deal 签署协议
  treaty 条约 draw up/sign a ~（正式）a peace ~ 和平协议 
  pact 条约  a non-aggression ~ 互不侵犯条约
  package (必须整体接受的) 一整套协议
  terms and conditions 条款协议（如app常见的）

脱欧协议

  the Brexit deal/package 
  a treaty for British withdrawal 退出协议