system exist/nsv

51.   No GM labelling system exists yet in Hong Kong.

52.   The IFE denied that the system existed.

n. + exist >>共 1655 个
problem 4.39%
evidence 2.06%
possibility 1.59%
opportunity 1.28%
difference 1.17%
life 1.15%
condition 1.10%
technology 1.04%
system 0.84%
group 0.78%
system + v. >>共 725 个
be 25.00%
work 4.60%
have 4.07%
allow 2.15%
use 1.82%
fail 1.48%
make 1.44%
need 1.42%
provide 1.31%
require 1.03%
exist 0.34%
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