Perforated baffle
[化] 多孔挡板
🧩 词语组成解析
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]
baffle
['bæfl]
vt. 使受挫折;使困惑，使迷惑;用隔音板隔音;挡住（水流等）;
n. 隔板，挡板;迷惑;遮护物，阻碍体;[军]迷彩;
🗣️ 情景例句
I need to be in the top percentage of my class to study abroad.
为出国留学，我的成绩必须在班里名列前茅。
When the tree is fallen, every one runs to it with his axe.
大树一倒下，人人持斧来。
People who work in offices are frequently referred to as white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.
坐办公室的之所以常常被称作“白领工人”，就是因为他们通常是穿着硬领白衬衫，系着领带去上班。