basic level trade union activities的用法和樣例：
例句
- No one should benefit from the activity of their union without paying dues to it.
任何人如果不支付會(huì )費就不應從工會(huì )活動(dòng)中撈取好處。 - It gained the authority to force employers to provide back pay if employees were unjustly discharged because of union activities.
如果雇員因參加工會(huì )活動(dòng)而被無(wú)理解雇時(shí)，委員會(huì )有權迫使雇主支付拖欠的工資。
