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单词 plunger
释义
plung·er (plŭnjər)
n.
1. One who plunges or dives.
2. A device consisting of a rubber suction cup attached to the end of a stick, used to unclog drains and pipes. Also called plumber's helper.
3. A part of a machine, tool, or device that operates wtih a thrusting or plunging movement, such as a piston.
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更新时间:2025/3/22 6:14:08