s***e
发帖数: 7166 | 1 不上发球机，人工训练用球，哪种比较耐久（不掉压力）？ | a*****0
发帖数: 6788 | 2 较贵的球。
【在 s***e 的大作中提到】
: 不上发球机，人工训练用球，哪种比较耐久（不掉压力）？
| h*****c
发帖数: 569 | 3 I have a somewhat related question... How about the quality of the Slazenger
balls in plastic cans(sold @ dick's,3 balls per can, "championship" series?
??) ?
The metal cans with 4 balls are very good, but I can not find ot at local
stores.
【在 a*****0 的大作中提到】
: 较贵的球。
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