Topograph
n. (显示晶体等物体表面特征的)X射线物相照片
🗣️ 情景例句
I'll be here when he calls back. Much appreciated.
他打电话时我会在这，太感谢你了！
I ought to stay at home.
我应该留在家中。
and there is a virtual limit on how long we can hope to remain alive,
我们所希望的长寿实际上是有限度的。