投球机器人投出泡沫塑料球的速度可达25英里/小时，但石川更希望将速度提高至93英里/小时，使其可以发出低于常速的投球，如曲线球和滑球。

The pitching robot throws a plastic foam ball at 25 miles per hour, but Ishikawa is hoping to increase the speed to 93 mph and make it able to throw off-speed pitches like curves and sliders.

youdao

断堤沙水湿，屦滑常恐蹶。

Off wet sand embankment, often fear kick slide sandals.

youdao

断堤沙水湿，屦滑常恐蹶。

Off wet sand embankment, often fear kick slide sandals.

youdao