PHRASE
(协议、宣言或选举结果)无法律效力的，无效的
If an agreement, a declaration, or the result of an election is null and void, it is not legally valid.
例句
A spokeswoman said the agreement had been declared null and void...
女发言人称该协议已宣布无效。
The declaration was null and void as it was proclaimed in completely illegal circumstances.
该声明无效，因为它是在完全非法的情况下宣布的。