先练一百米折返,或二百米间歇。以后再试五个四百。日累积达二千。一次跑二千,不长不短,不快不慢,不累不怠,适合初学老太
本帖于 2023-07-20 03:38:35 时间, 由普通用户 fuz 编辑
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