The whole system will be fully operational by December.

整个系统将于12月全面投入使用。

《柯林斯英汉双解大词典》

But by December the panic was back.

但是，12月的时候这种恐慌又卷土重来了。

youdao

By December, Jaguar and Land Rover faced their own cash crisis.

12月，捷豹和路虎都面临着现金危机。

youdao

The group is supposed to reach a compromise acceptable to at least fourteen of the eighteen members by December first.

VOA: special.2010.11.19

In the current world champion of chess, I think Vladimir Kramnik, was defeated in December by a chess-playing program.

当前的国际象棋世界冠军,弗拉基米尔?克拉姆尼克,就在今年12月被一个国际象棋程序击败

耶鲁公开课 - 死亡课程节选

I was strucked by what I found in the New York Times December 8th, a piece writen by an army officer.

我感到非常震惊,12月8号，我在纽约时报，看到了一篇军官写的文章。

普林斯顿公开课 - 国际座谈会课程节选

The Metropolitan Police "will know by December the full scale of cuts" facing the force.

BBC: Metropolitan Police faces ?500m 'cuts challenge'

The county council hopes work will start in October 2012 and be completed by December 2015.

BBC: Kingskerswell bypass work could start in 2012

By December, health officials estimate they will have a first draft of the national strategy.

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