素女经。道(dào )家(jiā )养生之法(fǎ )男人必须(xū )(🔼)四至(zhì )齐(qí )备(😘)阳(yáng )具不怒(🔱)张(🕰),便(biàn )是(🍥)蓄(🎺)力不充足; 怒张而(🍖)不硬大,便(biàn )是肌力(🎾)不充足; 硬大而不坚硬,便是筋力(lì )不(🕔)充足...