Set the Sweeper (clock 2 above) to one minute before your LWT. 8:14am in this example.

设置清扫车（闹钟2）：比LWT提前一分钟，即上午8:14。

youdao

Waiting until daylight, the sweeper went reluctantly back up into the hills to retrieve it.

等到天大亮了，清洁工很不情愿的返回山上想要取回铁锨。

youdao

When that event fires, the sweeper will fire, and can invalidate selected pages in the cache.

当此事件击发时，清理器也会击发，并可让缓存内的特定页面到期失效。

youdao

At that time Ayala was the sweeper in an Argentina back line which defended very deep.

BBC: Argentina's case for the defence

The sweeper returned to Germany and continued to perform - going on to be voted 1999 German footballer of the year.

BBC: World record awaits Matthaus

The sweeper played in Germany's opening 2-0 victory over Iran but his country's hopes ended with a disappointing defeat to Croatia in the semi-finals.

BBC: World record awaits Matthaus