Sand seal
[化] 沙封
🧩 词语组成解析
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
Are you being waited on?
您需要服务吗？
First think, and then speak.
先想后说。
Don't worry. I can help him.
不用着急，我来帮他。