Bandspread
波带扩展
🗣️ 情景例句
Well, you're the young man who did all this.
嗯， 你就是那位拍这些照片的年轻人。
Health and cheerfulness mutually beget each other.
健康愉快，相生相成。
For example, you can send information abroad immediately, but mailing a letter might take a week or so.
例如，你能够马上发送信息到国外，但寄一封信可能要大约一周的时间。