Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/a147952b9b8a0bde29226fa8227fa216.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 underhand service是什么意思，underhand service的翻译，underhand service音标、读音、用法和例句_94生活常识网有道词典
There are three basic kinds of service: the underhand serve the overhand serve and the hook serve or roundhouse serve. 有三種基本的發球方法：下手發球，上手發球和鉤手發球或大力鉤手發球。