suí shí
at any time
at all times
at the right time
suī shì
although
even though
even if
suì shí
crushed or broken rock, stone etc
Yú Shì nán
Yu Shi'nan (558-638), politician of Sui and early Tang periods, poet and calligrapher, one of Four Great Poets of early Tang 唐初四大家[Tang2 chu1 Si4 Da4 jia1]