[键入文字
]英语热词：
WiFi
太慢？试试
Li-Fi
吧！现在，我们身边的好多地方都有
WiFi
信号覆盖了。不过总能听到有人抱怨说信号
不稳，或者网速太慢。好消息来啦！据说，研究人员已经研究出了更加便捷和快速的
数据传输方式，你家的台灯就能帮你下电影呢！听起来是不是很酷？
Imagine
only
needing
tohover
under
astreet
lamp
togetpublic
internet
access,
ordownloading
amovie
from
thelamp
onyour
desk.
There's
anewtechnology
ontheblock
which
could,
quite
literally
aswell
asmetaphorically,
'throw
light
on'
howtomeet
theever-increasing
demand
forhigh-speed
wireless
connectivity.
Radio
waves
arereplaced
bylight
waves
...