empty-handed exercises

• 徒手体操

empty-handed exercises的用法和样例：

例句

1. The importance of good living habits is emphasized.Setting-up exercises are advocated before jumps to ensure maximum limberness of muscles and joints.
   特别强调的是良好的生活习惯，并要求在跳伞前做徒手体操，以促使肌肉和关节都处于最佳状态。