利弊
pros and cons; merits and drawbacks; advantages and disadvantages
力臂
lever arm (i.e. perpendicular distance from the fulcrum to the line of force)
欧里庇得斯
Euripides (c. 480-406 BC), Greek tragedian, author of Medea, Trojan Women etc
腓立比书
Epistle of St Paul to the Philippians