A code!What does this say?23-18-9-20-5/ /21-19/ /1/ /12-5-20-20-5_英语解答

A code!What does this say?
23-18-9-20-5/ /21-19/ /1/ /12-5-20-20-5-18
A=1,B=2,C=3,D=4,E=5,F=6.ect.

人气：398 ℃　时间：2020-06-22 10:28:32

解答

23-w,18-r,9-i,20-t,5-e//21-u,19-s//1-a//12-l,5-e,20-t,20-t,5-e,18-r
write//us//a//letter
中文是：给我们写封信!