11.   Christopher thanked the Central American leaders for their support and insisted that the downed aircraft had not penetrated Cuban airspace.

12.   The military said Russian aircraft had penetrated Urkrainian airspace several times in late March without authorisation.

v. + airspace >>共 52
violate 28.71%
enter 19.20%
use 14.36%
open 4.84%
close 4.34%
cross 3.84%
leave 2.67%
penetrate 2.00%
control 1.84%
offer 1.84%
penetrate + n. >>共 275
market 7.14%
skin 4.37%
wall 2.04%
airspace 1.75%
cell 1.60%
wood 1.60%
armor 1.46%
building 1.46%
city 1.31%
heart 1.31%
每页显示:    共 12