The lamp in the window shone away for hours.
窗户里的灯一亮就是好几个小时。
Lamp life for fluorescent lights is determined by testing three hours on for every 20 minutes off.
荧光灯使用寿命的确定方法是：每关闭20分钟后打开三小时。
Most of the shops lighted two hours before their time-as the gas lamp seems to know for it has a haggard and unwilling look.
大多数的店铺都比平时提前两个钟头掌灯——煤气灯似乎知道这一点，它们那副面孔显得又憔悴又不情愿。
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