Perforated cylinder
[化] 多孔转鼓
🧩 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]
🗣️ 情景例句
I understand what you're saying.
我明白你说的意思。
Don't bother me with stupid questions.
不要问一些愚蠢的问题来烦我。
Are you holding the ladder, Jim?
你扶住了梯子吗，吉姆？