spit saliva 中文意思是什麼
spit saliva
解釋
將唾液吐出-
But by that time, the bird would have no more saliva left and no more nutrition in its body to spit out any more. so it would spit until it bled. and the saliva on the nest at that time became bloody red
那時如果唾液已乾，身體里也沒有養分可吐，那它就會吐出血來，這種含血唾液做成的燕窩是血紅色的，但比白色燕窩更珍貴，人們吃的燕窩就是這樣來的。
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