31.   Police guarded the doors of the store to prevent it being swamped by a swelling crowd after it received its first delivery of corn meal for several days.

32.   Reporters who gathered at the hospital yesterday were not allowed near the operating room and an undercover detective and two marines guarded the door.

33.   Hospitals in the capital remained quarantined but were no longer sealed off with red tape and armed guards were no longer guarding the doors to prevent people from leaving.

34.   Two other men guarding the door were also arrested, according to a government statement.

v. + door >>共 423
open 39.17%
close 13.24%
lock 6.40%
shut 5.89%
slam 4.17%
answer 2.71%
unlock 1.54%
knock_on 1.40%
out 1.20%
have 1.03%
guard 0.46%
guard + n. >>共 664
entrance 4.35%
building 3.39%
border 3.31%
site 3.19%
privacy 2.73%
area 2.61%
house 1.45%
door 1.41%
prisoner 1.41%
gate 1.24%
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