PHRASE
(協議、宣言或選舉結果)無法律效力的，無效的
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...
女發言人稱該協議已宣布無效。
The declaration was null and void as it was proclaimed in completely illegal circumstances.
該聲明無效，因為它是在完全非法的情況下宣布的。