Cementocyte
牙骨质细胞
🗣️ 情景例句
Keep quiet, I'm trying to get some work done.
请安静，我要处理一些工作。
While there is life, there is hope.
留着青山在，不怕没柴烧。
Why does the idea of progress loom so large in the modern world? Surely progress of a particular kind is actually taking place around us and is becoming more and more manifest.
为什么进步这个概念在现代世界显得如此突出？无疑是因为有一种特殊的进步实际上正在我们周围发生，而且变得越来越明显。