They were good at playing net - balls ( joke ) . they even played a couple of net - balls from their serve 人们擅长于打落网球(开玩笑) ，他们甚至在发球时发了一些落网球。
2.
John : not true . they were good at playing net - balls ( joke ) . they even played a couple of net - balls from their serve 不仅如此吧。他们擅长于打落网球（开玩笑） ，他们甚至在发球时发了一些落网球。
