4 = 2 ^ 2
by BrotherCall @ 2021-08-27 04:17:51
@[Trion_Yoya](/user/376265) 噢噢噢原来是2^k千米
by 966123anyunchuan @ 2021-08-27 04:20:00
谢谢orz
by 966123anyunchuan @ 2021-08-27 04:20:17