Sui Hai and Su Yang are twin sisters.Thay are in the same class and they look the same.
Sui Hai 和 Su Yang 是双胞胎姐妹,她们看起来很像而且在同一班级.
Su Yang is better at the long jump than Su Hai.
Sui Hai 比 Su Yang 更擅长于跳远.（be good at,擅长于,因为有比较,所以用good的比较级better.
希望有助于你.