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
Going away to college for the first time
第一次离家上大学，
Step after step the ladder is ascended.
按部就班，循序渐进。
There's nothing better for you than plenty of water and sleep.
你最好多喝水多休息。