underhand service的意思|示意
美 / /
英 / /
低手发球
underhand service相关短语
1、 side underhand service 体侧下手发球
2、 underhand d service 下手发球
underhand service相关例句
There are three basic kinds of service: the underhand serve the overhand serve and the hook serve or roundhouse serve.
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钩手发球。