Sand core
[化] 砂芯
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
core
[kɔ:]
n. 中心，核心，精髓;果心，果核;[地质学]地核;[计] 磁心;
vt. 去（果）核，挖去…的果心;提取岩芯（样品）;
🗣️ 情景例句
making my own decisions, doesn't it?
我自己能做决定， 对吗？
I was in the hospital for several weeks.
我在医院里住了几个星期了。
So it became known as the gold rush.
成为广大为人知的“淘金热”。