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单词
ionosphere
释义
ionosphere
i
on
o
sphere
/
aɪˈɑnəˌsfɪr
/
noun
Etymology
ETYMOLOGY
ionosphere
Origin:
1900-2000
ion
+
-sphere
(as in
atmosphere
)
earth science
the ionosphere
the part of the
atmosphere
that is used to help send radio waves around the Earth
随便看
sight-reading
sightseeing
sightseer
sight word
sigma
sign
signage
signal
signalize
signally
signalman
signatory
signature
signboard
signer
signet
signet ring
significance
significant
significant figure
significantly
significant other
signification
signify
signing
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更新时间:2024/11/12 7:15:02