Ratt
abbr. radioteletypewriter 无线电电子打字机
🗣️ 情景例句
It is OK to ask children how old they are.
问小孩多大了是可以的。
Excuse me, I'd like to ask you a question.
对不起，我可以问个问题吗？
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。