I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.
我星期五会给你打电话,在你方便的时间重新安装我们的午餐约会。
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。