However, by 900 BC, many Maya cities were abandoned, calling an end to the empire.
然而，及至公元前 900 年，许多玛雅城市被遗弃，玛雅帝国逐渐衰落。
新鲜空气
At the same time, they never abandoned their calls for true Palestinian independence.
与此同时，他们从未放弃对巴勒斯坦真正独立的呼吁。
新鲜空气
They never abandoned their calls for the right of all Palestinian refugees around the world to return, and they certainly never gave up their weapons.
他们从未放弃呼吁世界各地所有巴勒斯坦难民返回家园的权利，他们当然也从未放弃武器。
英语百科
Silent call
（重定向自Abandoned call）
A silent call is a telephone call that is generated by a predictive dialler (or dialler) which does not have an agent immediately available to handle the call. In this instance the call may be terminated by the dialler, and the called party receives a silence ("dead air") or a tone from the telephone company which indicates the call has been dropped.