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单词
germ layer
释义
Word Frequency
germ layer
noun
embryology
any of the three layers of cells formed during gastrulation
ectoderm
,
mesoderm
,
endoderm
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out
outa
outa
outachieve
outact
outadd
outage
out and about
out and away
out-and-out
out-and-outer
outargue
outasight
outasite
outask
out at elbow
out at elbows
outback
outbacker
outbake
outbalance
outbar
outbargain
outbark
outbawl
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更新时间:2026/3/15 2:54:47