This is BBC world news. I'm David Eads with the headlines.

这里是BBC世界新闻头条 我是大卫·伊兹

President Trump has sacked his top cyber security official Chris Krebs for rejecting claims of fraud in this month's election.

特朗普总统解雇了他的高级网络安全官员克里斯·克雷布斯 因为克雷布斯拒绝接受本月选举中存在欺诈的指控

In a tweet, the president said he had made a highly inaccurate statement about the election.

总统在推特上表示 他对选举做出了非常不准确的声明

Mr Trump is halving the number of U.S troops in Afghanistan and Iraq before he leaves office.

特朗普将在离任前将驻阿富汗和伊拉克的美军人数减半

He stops short of a threatened full withdrawal.

他没有威胁要全面撤军

The move has been criticized by NATO secretary general also by some democrats and republicans.

这一举动受到了北约秘书长以及一些民主党和共和党人的批评

South Australia has announced a six-day lockdown from midnight local time as health authorities tried to contain the first coronavirus outbreak in the state since April.

南澳大利亚州宣布从当地时间午夜开始实行为期六天的封锁 卫生当局试图控制自4月份以来该州首次爆发的冠状病毒疫情

Schools, restaurants and factories are to close and residents have been told they would stay at home.

学校、餐馆和工厂将关闭 居民被告知待在家里

Tropical storm Iota has brought widespread flooding now to central America as it moves across the region.

热带风暴约塔在穿越中美洲地区时给该地区带来了大面积的洪水

Those are the headlines.

以上为新闻头条