水质一直处于全天候监测中。

水质一直处于全天候监测中。

The water quality has been being monitored around the clock.

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The water quality has been being monitored around the clock.

has been being monitored 构成现在完成进行时被动,monitored 为过去分词,around the clock 强调监测动作的持续不间断性。

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