Collagen: Basic protein constructing skin and muscle, highly safe and secure, effectively replenish aqua for skin, lock up aqua persistently, and leave skin away from dryness and dehydration.是什么意思_Collagen: Basic protein constructing skin and muscle, highly safe and secure, effectively replenish aqua for skin, lock up aqua persistently, and leave skin away from dryness and dehydration.在线翻译_英语_读音_用法_例句