trap

trap1
noun
  1. a device or enclosure designed to catch and retain animals, typically by allowing entry but not exit or by catching hold of a part of the body
    陷阱,罗网,捕捉装置
    ■a curve in the waste pipe from a bath, basin, or toilet that is always full of liquid and prevents gases from coming up the pipe into the building
    (浴池、水池、马桶的防臭气)存水弯,U形弯管
    ■[with modifier]a container or device used to collect a specified thing
    容器;存贮装置
    one fuel filter and water trap are sufficient on the fuel system.
    燃料系统只需一个燃料过滤器和集水器。
    ■a bunker or other hollow on a golf course
    (高尔夫球场的)洞,沙坑
    ■the compartment from which a greyhound is released at the start of a race
    (赛狗开始时放灵
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