plunger

• 指为追求潜在高额回报而承担重大财务风险的人，也指潜水员；还指带有橡胶吸盘、用于疏通堵塞管道的手动工具，以及做往复运动的机械装置。

A noun referring to a person who takes significant financial risks for potential large gains, a person who dives into water, a hand tool with a rubber suction cup used to unclog drains, or a mechanical device with a thrusting motion.

1. Risk-taker or gamblerC1informalbusiness

   A person who takes significant financial risks, especially in business or gambling, hoping for large gains.

   冒险者

   • He's a real plunger, always betting big on risky stocks.
   • The casino was full of plungers hoping to win a fortune.
   • Only a plunger would invest that much in such a volatile market.

   同义词adventurergamblerhigh rollerrisk takerspeculatorventurer

2. DiverB2formalsport

   A person who dives into water, especially for sport or recreation.

   跳水者

   • The plunger executed a perfect dive from the high board.
   • Competitive plungers train for hours to perfect their technique.
   • A skilled plunger can enter the water with almost no splash.

   同义词diver

3. Plumbing toolA2formal

   A hand tool consisting of a rubber suction cup attached to a handle, used to unclog drains and toilets.

   管道疏通工具

   • She used a plunger to clear the blocked kitchen sink.
   • Every household should have a plunger for emergencies.
   • The plumber recommended a heavy-duty plunger for tough clogs.

4. Mechanical componentC1formaltechnical

   A mechanical device or part that moves with a thrusting or plunging motion, often used in engines or pumps.

   柱塞

   • The engine's plunger mechanism needs regular lubrication.
   • A faulty plunger caused the pump to malfunction.
   • The technician replaced the worn-out plunger in the hydraulic system.

   同义词pistonram