Concave perforated plate
[化] 凹形多孔板
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
v. 穿孔于, 在…上打眼( perforate的过去式和过去分词 ); （在纸张等上）打齿孔[孔眼线]
plate
[plet]
n. 盘子，盆子;金属板;均匀厚度的片状硬物体;[摄]底片，感光版;
vt. 镀，在…上覆盖金属板;覆盖;电镀;[印]给…制铅板;
plat 平坦 + e → n.板，片，盘 vt.电镀
🗣️ 情景例句
It's good, but it's a little expensive.
很好，不过价格有一点贵。
My brother is not quite twenty-five.
我的兄弟不够25岁。
Lucy and I go to school six days a week.
鲁茜和我每周上六天课。