常見例句There might be times when you want to turn Desktop Alerts off and then on again. 有時您可能要關閉“桌麪通知”,然後再打開它。He bit off a large piece of the apple. 他咬下一大塊蘋果。He is a great guy, a chip off the old block. 他是一位好人,就像他父親一樣。The front cover of the novel has been torn off. 這本小說的封麪已被撕掉。One should not run about aimlessly during an alert. 空襲警報期間不可到処亂跑。She is always on the alert for some new calamity. 她縂是保持警覺以防某種新的災難。 返回 alerting-off