There was widespread picketing of mines where work was continuing.
凡是在继续开采的矿区，都设置了纠察队。
柯林斯例句
" And my chaps were also there to prevent picketing!
“ 我的人也是防着女工们要拦厂!
子夜部分
" The reason why we got people in was to prevent the girls picketing ---- "
“ 我们叫了人是防备女工们拦厂的 —— ”
子夜部分
" We have to call people in to prevent the women picketing and stirring up trouble!
“ 我们叫了人来是防备女工闹事!
子夜部分