无奈用中文会被和谐= = 　　

Action 13key2
Causes oi action in general. most cited cases Where there is a legal right, there is also alegal remedy by suit, or action at low, whenever that right is invaded.

The surpreme court of the U.State has not power to issue a mandamus to asecretary of state of the U.Sates, it being an exercise of original jurisdiction not warranted by the constitution. Congress have not power to give original jurisdiction to the supreme court in ither cases than those describled in the constitution.An act of congresss repugnant tothe constitution.=cannot become a law. The courts of the U.States are bound to take notice of the constitution. A commission is not necessary to the appoingment of an officer by the executive-Semb. Acommission is only evidence of an appointment

Delivery is not necessary to the validity of letters patent. The President cannot autthorize a secetary of state to omit the performance*139 of those duties which are enjoyed by law.

Delivery is not necessary to the validity of letters patent.这句应该怎么理解？