Grinding seal
[化] 研合密封
🧩 词语组成解析
a. 刺耳的, 沉重的, 剧烈的\\n[化] 研磨; 磨碎
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
He's not making much progress with his English.
他的英语进步不大。
She succeeded in persuading her parents.
她成功地说服了父母。
Modern machines can make the copy bigger or smaller, lighter or darker and copy onto both sides of the paper.
代机器可以放大、缩小、制作较亮的或较暗的复印件，也可以在纸的两面复印。