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1·Fire crews refused to cross the picket line.

消防人员拒不冲破围厂队伍人墙。《牛津词典》

2·The miners are trying to get factory workers to join them on the picket line.

矿工正设法让工厂工人加入他们的纠察队人墙。

3·Well that was plausible, but no one ever heard our pleas, they just went from one petty picket line to another unable to pinpoint an overall theme to our actions.

这听起来似乎有些道理，但没有人听我们请求，他们只是从一条小的纠察线走到另外一条小的纠察线，不能对我们行动的主题作出准确判断。

4·Many would like a kindlier tone, but, perhaps due to an aroma of xenophobia that some detect on the picket-line, they crave a speedy resolution even more.

许多人喜欢更友好一些的腔调，但是或许是由于仇外情绪已经蔓延到警戒线了，他们更加渴望罢工能尽快得以解决。