Penetration core
[机] 增压砂心
🧩 词语组成解析
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
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
you are about to become Susan Bennett--
即将成为Susan Bennett
I am old enough to make up my own mind.
我已经长大了，可以自己拿主意了。
Welcome back to school!
欢迎回校！