2015年Scientific American's Six

If you are lost, you need a map and a compass. The map pinpoints where you are and the compass orients you in the right direction. Migratory birds, on the other hand, can traverseentire hemispheres and end up just a couple of miles from where they br

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Wilder protected areas get eight billion visitors a year, and that's just on land. Underwater reserves? add a million to the tally, which, considering these are protected areas, seems like an insane number of people. It isn't insane. Dane Blumstaine,

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学英语单词
AMCILLIN
anticolodal
assimilation limit
autohemolysin
basic management
BCS theory
brown edema
Chlormezamone
Clematis courtoisii
climacophobia
collecting agency
communication interruption rate
component efficiency
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coshly
cumulative solution
dangerous depth
de-fang
dehortative
deposit premium company
derivative-action coefficient
equality is equity
Espinillo
ethyl sulfone
fiddlehead fern
fish anchor
flapcake
fraenotomia
garreton
generalized parameter
gleaned
grace hopper nanosecond
graticule image
green lights
gumph
harden your heart
history of physics
horizontal spacing between purlins
integral keyboard
interstation interference
iron ore separator
keep a good lookout
key to disk shared processor system
laugh full mouth
m'ija
m-model
maculopapillary
mcmurtrie
membranous granules distributing tube
metatoluic
mileage per quart
motor frame through bolt
mucobacterium xenopi
multiaccess system
near-solar space
nodocoquimba gibboidea
noncom.
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ophichthys macrochir
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palaez
perseyve
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quo-so
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Rieux's hernia
rouz
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shields
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to come unglued
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