Melaena
n. [醫]黑糞癥
??? 情景例句
What are you doing tomorrow night?
明天晚上做什么？
Do now waste them, but use them while they are fresh.
不要浪費了這些，要趁未落伍時善加利用。
Yes. It's very different from Australia at this time of year.
對。這個時節這兒的天氣與澳大利亞的大不相同。