Su Hai and Su Yang are that a pair of twin sister , they almost grow the same. Su Hai is an elder sister , Su Yang is a younger sister.So Su Yang is younger than Su Hai.Su Hai is taller than Su Yang,so Su Yang is shorter than Su Hai, This is "ocean".(我想应该是This is "Hai Yang".)
Suhai and Suyang are twins,they looked nearly the same. Suhai is older sister,Suyang is younger sister, so Suyang is younger.Suhai is taller than Suyang,so Suyang is shorter than Suhai,and this is the "ocean".废话好多。。。。。。。。。。。。。。。。。。