fair game

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌfair ˈgame noun [uncountable]  CRITICIZEif someone or something is fair game, it is acceptable, reasonable, or right to criticize them 该受批评的人[事物] The young star’s behavior made her fair game for the tabloid press. 那位年轻明星的行为使她自己成了小报批评的对象。

Examples from the Corpus

fair game• All kinds of birds and fish were also fair game, with parrots being particularly prized prey.• Government officials were always fair game to be bought by special interests.• However, small, non-mechanical parts are fair game and might show considerable savings.• Any woman on this street would seem to be fair game, and especially a gaijin.• The paper seems to think that just because I'm a politician, my entire family is fair game.• Any effect that a change in a gene has on its own replication probability is fair game for natural selection.

ˌfair ˈgame nounChineseSyllable  

is is Corpus something fair game, someone it if or

fair game
ˌfair ˈgame noun [uncountable]
if someone or something is fair game, it is acceptable, reasonable, or right to criticize them:
    The young star’s behavior made her fair game for the tabloid press.

fair gameBrE /ˌfeə ˈɡeɪm/ 🔊NAmE /ˌfer ˈɡeɪm/ 🔊 noun [uncountable] if a person or thing is said to be fair game, it is considered acceptable to play jokes on them, criticize them, etc. 可开玩笑（或嘲弄、作弄）的对象◆The younger teachers were considered fair game by most of the kids. 多数小孩认为年轻教师是可作弄的对象。🔊🔊