red line
noun[C]
uk/ˌred ˈlaɪn/us/ˌred ˈlaɪn/alimitbeyond which someone'sbehaviouris nolongeracceptable:
红线Thepirateshadcrossedaredline, and there would be no giving in totheirdemands.海盗们已经越过了红线,不能对他们的要求做出让步。
Limiting and restricting
- anti-libertarian
 - boundary
 - boxsomeone/somethingin
 - chain
 - chainsomeonetosomething
 - cramp
 - crowd
 - curb
 - curtail
 - curtailment
 - damage limitation
 - hamstring
 - keep (herself) toherselfidiom
 - limit
 - limitation
 - limiting
 - localize
 - straitjacket
 - tempered
 - tiesomeonedown