SAS
noun
ˌɛseˈɛsˌeseɪˈes
noun
1
the SAS the Special Air Service
a
British
military
force
that
is
specially
trained
to
do
secret
and
dangerous
work
特种航空队，空军特种部队〔英国一支经特殊训练、执行秘密危险任务的特种部队〕