抡臂大力钩手发球
Swing the arm vigorously and hook the hand to serve
以上为机器翻译结果，长、整句建议使用 人工翻译 。
有三种基本的发球方法：下手发球，上手发球和钩手发球或大力（抡臂）钩手发球。
There are three basic kinds of the underhand serve the overhand serve and the hook serve or roundhouse serve.
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