When acted on skin,PTF light absorbed by skin makes cells line more tighly and collagen protein synthesized,prompts blood circulation and metabolism,and improves skin resistance and immunity.是什么意思_When acted on skin,PTF light absorbed by skin makes cells line more tighly and collagen protein synthesized,prompts blood circulation and metabolism,and improves skin resistance and immunity.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句