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单词
permafrost
释义
per·ma·frost
(pûr
m
ə
-frôst
′
, -fr
ŏ
st
′
)
n.
Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas.
[
PERMA(NENT)
+
FROST
.]
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更新时间:2025/7/11 0:29:54