Heterolith
[医] 异质肠石(不含矿物质的肠石)
🗣️ 情景例句
It's common practice.
这是惯例。
She refuses to make up her mind.
她拒绝下决心。
I'm hungry. I haven't eaten anything since yesterday.
我很饿了，昨天到现在都没吃过东西。