31.   The Clintons flew in the second helicopter to the presidential mountain retreat in Maryland and landed without incident.

32.   The first helicopter sent to evacuate her developed a fuel leak and a second helicopter was called in.

33.   The injured crew members were rescued by a second helicopter that had accompanied them on their initial mission.

34.   The injured were rescued by a second helicopter that had accompanied the initial mission.

35.   The Portuguese Air Force was sending a second helicopter to the scene, state radio said.

36.   The second helicopter returned and picked up the dead and wounded, he said.

37.   The second helicopter picked up the sick soldier and four soldiers who were hurt in the crash.

38.   The second helicopter dropped troops in that area, and six were killed in a firefight, Mills said.

39.   The second helicopter picked up the sick soldier and the four who were hurt in the crash.

40.   This second helicopter also brought the firemen, who acted as the fire attack team.

a. + helicopter >>共 533
israeli 20.66%
military 19.15%
russian 7.30%
combat 2.87%
american 1.92%
navy 1.82%
british 1.19%
second 1.17%
the 1.05%
french 1.05%
second + n. >>共 806
half 9.38%
time 6.38%
round 5.87%
day 5.52%
quarter 3.31%
set 2.25%
place 2.17%
game 2.14%
term 1.94%
year 1.93%
helicopter 0.05%
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