Melaena
n. [医]黑粪症
🗣️ 情景例句
Yes. At our company, quality control si very important.
是的。在我们公司，质量管理非常重要。
Can I fix an overseas call to London by person-to-person call?
我要打到伦敦的叫人电话好吗？
What are you talking about?
你在说什么？