It is provided with L and N double-break switch and power indicator lamp.

零、火线双断开关设计，配有电源指示灯。

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This will break your subvocalization attachment and can easily let you double your reading rate with sufficient practice.

这将打破你默读的习惯，经过足够的实践之后很容易让你阅读速度翻倍。

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But serving at 5-5 Ferrer hit two shots into the net and then double-faulted — missing the second serve by more than a foot — to give Murray the break.

但是在比分来到5 - 5的时候，费雷尔两次击球下网，并送出一个双误—第二发球出了发球线超过一英尺—让穆雷取得了破发。

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He swiftly sealed the double-break, set up by a backhand return winner up the line, followed by his opponent dumping a meek forehand into the net.

BBC: Australian Open: Andy Murray crushes Garcia-Lopez

After firing long with an overhead from the baseline to concede the double-break in game four, Garcia-Lopez vented his frustration by smashing the ball high into the air.

BBC: Australian Open: Andy Murray crushes Garcia-Lopez

The 26-year-old from Portugal looked down and out when she slipped on the turf while falling a double-break down at 4-0, and Williams wrapped up the first set in just 27 minutes.

BBC: Serena powers into second round