【法】 void and voidable
be of no effect; invalidity; impotence; inefficacy; nullification; nullity
【计】 IDL; ineffectiveness
【医】 inefficacy
【经】 inefficiency; null and void
even; indeed; so far as to
can; may; not bad; Ok
become invalid; blank out; cancellation
【计】 cancel; DEL
【化】 null and void; nullify
【经】 repeal