ponging/ˈpɪŋˌpɑːŋ/名词乒乓球运动In the evening we play Ping-Pong or watch TV.晚上我们打乒乓球或者看电视。/ˈpɪŋˌpɑːŋ/动词不断变向移动Applause ping-ponged off the walls.掌声在室内回荡。想跟读,去练习