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long service line /ˈlɒŋ ˈsɜːvɪs ˈlaɪn/ n

中文：双打后发球线

中文 · 双打后发球线Español · línea de servicio largoFrançais · ligne de service long
Meaning：Line that marks the back of the service zone for doubles matches.
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Badminton court

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