adj.费力的；吃力的；勤勉的
What an operose business it is to establish a government absolutely new. 建立全新的政府是何等艰苦的事情。
Don't use the cellphone when the signal is weakling,as that means the cellphone works more operose so it will emanate more radiations. 手机信号弱时别用，因为那意味着手机工作起来费力，因而会散发出更多的辐射。
