英文知識王名詞CEFR B2
pistons
A solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)、A valve device in some brass instruments for changing the pitch
各國口音發音
一句話記住 pistons
「pistons」是名詞，意指在壓力下移動的圓柱，像是引擎裡的活塞或樂器的音調閥。想像：一台轟鳴的跑車，活塞在引擎內上下運動，瞬間釋放出強大的動力。