To serve,the player throws the ball straightly up into the air. It must leave the palm of his hand. It must then be hit at the first attempt.是什么意思_To serve,the player throws the ball straightly up into the air. It must leave the palm of his hand. It must then be hit at the first attempt.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句