Innovative Eco-friendly Products
LED light bulbs
LED is the newest alternative to the current, energy-efficient fluorescent light bulbs. But unlike fluorescent bulbs, LED lights contain no traces of the toxic element mercury. They are even found to be 5 percent more efficient than fluorescent and possess a life span of up to 50,000 hours! Purchase costs may be high, but only LEDs can say they will still be glowing 20 years from now.
LCD TVs
LCD is nothing new – liquid crystal display was first discovered as a technology in 1888. But these days, LCD is the standard in energy-efficient TVs. The past year offered up numerous improvements that are determined to save watts and bucks. For one, human presence sensors prompt the TVs to shut off after 30 minutes when no one is in the room. Additionally, illuminating backlights dim and brighten depending on the lighting present in the room. To cut off power completely, just flip a switch on the back panel to avoid paying for that energy use spent in "sleep mode." All of these are just some of the many ways LCD has once again redefined efficiency.
alter- 其他的
alternative n. 替代方案/非傳統的選項
=> It's something that can be used in place of something else.
eg: Natural herbs can be an alternative to medicine for treating colds.
=> 除了藥物之外，天然草藥是治療感冒可使用的另類方法。
eg: Green tea is a healthier alternative to coffee if you need caffeine.
=> 如果你需要咖啡因，綠茶是比咖啡更健康的替代品。
span n. 一段期間/時間
life span n. 使用期間/壽命
eg: The life span of an adult butterfly is only one or two weeks.
=> 孵出來的蝴蝶的壽命只有一到兩週
eg: The life span of this kind of battery is twice as long as the regular ones.
=> 這種電池的壽命是一般電池的兩倍
sensor n. 感應器
eg: A heat sensor can detect the presence of human beings or animals.
=> 熱能的感應器能夠察覺人類或動物的存在
eg: The smoke sensor goes off if someone is smoking in the bathroom on the plane.
=> 如果有人在飛機上的廁所裡抽菸，煙霧感應器就會發出響聲。
LED (light-emitting diode) 發光二極管
fluorescent adj. 發亮的
watt n. 【電】瓦(特)
prompt v. 促使
//== Chat room ==//
save watts and bucks 省電和省錢
watts（瓦特）電力的單位
buck 美金一塊錢
=> 本課的buck為俚語的用法，表示美金一塊錢
eg: Can I borrow a buck?
=> 我能不能跟你借一塊錢
I'd like to make an extra buck.我想要多賺一點錢
pass the buck 表示推卸責任/怪罪別人
=> shit the blame to another person
the buck stops here 責無旁貸/我會付起一切的責任
=> informal expression
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