亚利桑那的图森，一只仙人掌蜜蜂正在一株桶形仙人掌的花朵上传粉。

A cactus bee (Diadasia sp.) pollinates a barrel cactus in Tucson, Arizona.

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掌红斑(图148 - 2)，除了妊娠时以外，可能是慢性肝病存在的信号。

Palmar erythema (Fig. 148-2), except in the setting of pregnancy, may signal the presence of chronic liver disease.

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重心前移成右弓步，两掌同时向前挤出时呼气。(图14)。

Breathe out when shifting the weight in the bow step, stretching the palms forward. (Fig14).

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