black·leg
noun/ˈblækleɡ/
/ˈblækleɡ/
(British English, disapproving)- a person who continues to work when the people they work with are on strike; a person who is employed to work instead of those who are on strike
破坏罢工者，工贼（罢工时继续工作或受雇顶替罢工者工作）