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洞燕

目錄：

1. 什么是白燕窩

什么是白燕窩

什么是白燕窩 白燕窩是什么呢？燕窩有分成洞燕和屋燕兩種。洞燕：就是燕子在野外在山洞、沿海峭壁做的巢窩、因早期無序的濫采亂挖使絲燕生存環境受到破壞，現在泰國一些燕洞中只留下昔日用于采摘的竹梯,而燕子早已寥寥無幾、...