Intrastratal
层内的
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
Heaven helps those who help themselves.
天助自助者。
Modern machines can make the copy bigger or smaller, lighter or darker and copy onto both sides of the paper.
代机器可以放大、缩小、制作较亮的或较暗的复印件，也可以在纸的两面复印。