Aperturae
[医] 口, 孔
🗣️ 情景例句
Chairman Mao said it is necessary to drill as much as possible.
毛主席说，反复操练是非常必要的。
I asked him to fix it for me, but he wouldn't.
我请他帮我修理，但是他不肯。
They describe how each process goes on to the next.
表述着每道工艺间的衔接情况。