请在文件名中使用斜杠来分隔日期部分，例如2023/12/25。

Use a ___solidus to separate date parts in the filename, like 2023/12/25.

考古学家在遗址中发现了一枚古罗马时期的金币。

The archaeologists found a Roman ___solidus at the excavation site.

在相图中，固液相界线显示了物质从固态转变为液态的温度。

The ___solidus on the phase diagram shows the temperature at which the substance changes from solid to liquid.