31.   To make a photo search for a planet, astronomers had to block the light from the very center of Beta Pictoris.

n. + have >>共 1318
company 3.47%
government 1.92%
team 1.89%
people 1.78%
country 1.14%
state 0.96%
official 0.95%
man 0.88%
player 0.88%
woman 0.87%
astronomer 0.02%
astronomer + v. >>共 242
say 12.35%
be 7.04%
believe 4.66%
have 3.36%
think 3.14%
find 3.03%
hope 2.82%
use 2.71%
see 2.38%
know 2.17%
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