几个 stroke 1 次呼吸因人而异, 关键是不能有憋气的阶段, 保持平稳不间断地吸入和呼出.

来源: 选民于 2023-06-24 10:51:01 [旧帖] [给我悄悄话] 本文已被阅读：次

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