Sand core
[化] 砂芯
?? 詞語組成解析
sand
[s?nd]
n. 沙;沙灘;沙色;
vt. 撒沙于;用砂紙磨光;
core
[k?:]
n. 中心，核心，精髓;果心，果核;[地質學]地核;[計] 磁心;
vt. 去（果）核，挖去…的果心;提取巖芯（樣品）;
??? 情景例句
your reasons for wanting an animal.
你要養動物的原因。
When it started raining, I was reading books.
當開始下雨的時候，我再看書。
Not at all. Glad to help! Oh, what's this? There's another small pan here, too!
沒什么。我很高興能幫你。啊，這是什么？這里還有一個小平底鍋！