Take notice
注意；留意
例句：She finally took notice of the warning signs.
Without notice
未提前通知；突然地
例句：He quit his job without notice.
On short notice
在短时间内；仓促地
例句：They organized the event on very short notice.
Serve notice
正式通知（尤指解雇或终止合同）
例句：The landlord served her with a notice to vacate.
At your earliest convenience
（礼貌用语）在您方便时尽早（常用于正式通知）
例句：Please respond to this notice at your earliest convenience.
Public notice
公告；公开通知
例句：The decision was announced by public notice.
Give notice
发出通知（尤指辞职或解约）
例句：Employees must give two weeks’ notice before leaving.
Legal notice
法律通知
例句：You will receive a legal notice if you violate the terms.