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单词
very heavy work
释义
very heavy work
ver·y hea·vy work
(
ver'ē hev'ē wŏrk
)
A physical demand level described as the exertion of up to 100
+
pounds of force occasionally, or up to 50
+
pounds of force frequently, or 20
+
pounds of force constantly to move objects.
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更新时间:2026/1/14 8:47:57