[單字] duck dropping是什麼意思

[home6110 (TreeMan)]

要問的字詞：duck dropping

以下節錄自Scientific American:

"Researchers...trained mice to identify duck droppings from animals infected

with bird flu."


這個duck dropping 我google過，有出現小鴨子和行李箱?

有人知道真正的意思嗎??

Thanks a lot.

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→ home6110:非常感謝!