请输入您要查询的英文单词:
单词
positive block
释义
positive block
noun
:
a block in which only one railroad train is allowed to be at one time
— compare block system
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on must
on my word
ono
on oath
onobrychis
on occasion
onocentaur
onoclea
onocleoid
on offer
onomancy
onomasiologic
onomasiological
onomasiology
onomastic
onomasticon
onomastics
onomato-
onomato
onomatology
onomatomania
onomatope
onomatopoeia
onomatopoeian
onomatopoeic
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更新时间:2025/3/25 5:17:48