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 knew I could rely on you mate.
伙计，我重新夺得我可以信赖你。
Mr. Smith is still in his fifties.
史密斯先生仍然50几岁。
There is only one difference between an old man and a young one:
老年人和年轻人之间仅仅有一个不同：