Mandamus and Writ的意思，現查的

writ (rĭt)
n.
Law. A written order issued by a court, commanding the party to whom it is addressed to perform or cease performing a specified act.

man·da·mus (măn-dā'məs) Law.
n.
A writ issued by a superior court ordering a public official or body or a lower court to perform a specified duty.