But the precondition for all of this is of course to ensure the survival of the swiftlet; otherwise; there will be no way to ascertain their curative powers, as may happen for rhino horn powder if that animal is exterminated. This will end any chance of developing refined drugs from them which could be widely used by all mankind.
但前提當然得讓金絲燕生存下來，否則就像犀角粉，如何成為解熱劑的過程，可能隨著犀牛的絕種而無跡可尋；也喪失了它成為科學化藥劑，讓世人長久、廣泛使用的可能。