21.   The military said the pilot dropped fuel tanks to lessen its weight and avoid a crash following a technical problem.

v. + crash >>共 164
cause 26.98%
survive 14.41%
investigate 12.51%
follow 6.32%
blame 4.60%
see 2.82%
hear 2.58%
prevent 2.02%
witness 1.90%
attribute 1.84%
avoid 1.29%
avoid + n. >>共 1364
problem 2.23%
confrontation 1.84%
conflict 1.24%
tax 1.18%
detection 1.11%
injury 0.98%
risk 0.91%
contact 0.90%
arrest 0.86%
trouble 0.84%
crash 0.12%
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