请输入您要查询的英文单词:
单词
sumpman
释义
sump·man
\ˈsəmpmən\
noun
(
plural
sumpmen
)
:
sumper:
a.
:
a pitman's helper
b.
:
a worker who assists a shaft-sinking crew by putting supporting timbers in place
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更新时间:2025/11/4 10:23:33