Having eaten tiny fish, insects and Marine algae, swiftlets spit out their saliva to make nests which become edible after they have been cleaned and processed manually.
燕窝为金丝燕吞食海中小鱼或其他蚕螺海藻等小生物后，用吐出的唾液凝结而成的燕窝巢。
As for the investigation of fraudulent trade practices, precious commodities such as shark's fin and swiftlets nests are regularly submitted for certification of their authenticity.
在协助调查不良经营手法方面，化验所经常对一些贵重商品，例如鱼翅、。
As for the investigation of fraudulent trade practices, precious commodities such as shark's fin and swiftlets nests are regularly submitted for certification of their authenticity.
在协助调查不良经营手法方面，化验所经常对一些贵重商品，例如鱼翅、。
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