ping-pong和ping-pong ball的区别在哪里.

ping-pong ping-pong和ping-pong ball的区别在哪里. play ping-pong PING PONG怎么样 Ping pong is f________ 什么是ping pong email? Why Ping Ping Pong is round can Bill play ping-pong( -Sure ping-pong is favorite. Bob___one ping-pong bat,he doesn't__a ping-pong ball. John does not ( ) ping-pong. Let's play ping-pong. I can't _____ (play) ping-pong. play ping-pong with my classmates是什么意思 I like to play ping-pong They ___swim ___play ping-pong after school. Does your brother play ping-pong __________? 为什么乒乓球的英文名是ping-pong? She plays ping-pong with her p____