Additional channel
[计] 辅助通道
🧩 词语组成解析
🗣️ 情景例句
Oh, I don't know.
噢，这个我就不知道啦。
As soon as he comes, we'll let him know.
他一来，我们就告诉他。
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。