坐着的姿势是静止的、被动的，不活跃的。

The sitting position is motionless, passive, and inactive.

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在脑海中勾勒树木的形象，想象脚如同树根般深深扎根于大地，这能帮助你感受到静止稳定并调整你的姿势。

If you picture a tree, imagine your foot as the roots digging deeply into the earth and it will help you find stillness and correct your posture.

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其主要临床症状有静止性震颤、运动迟缓、肌强直和姿势步态异常等。

PD's mainly symptoms include stilly shacking, bradykinesia, rigidity muscles and abnormal posture and pace.

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