picket line

noun
🔊/ˈpɪkɪt laɪn/
🔊/ˈpɪkɪt laɪn/
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  1. a line or group of pickets纠察线;纠察队人墙
    • Fire crews refused to cross the picket line.消防人员拒不冲破围厂队伍的人墙。🔊🔊
    Topics Social issuesc2