我如何建模以下內(nèi)容：一個(gè)用戶有很多關(guān)注者并關(guān)注很多用戶。同一個(gè)用戶有許多被阻止的用戶（Twitter 有點(diǎn)功能）。public class ApplicationUser : IdentityUser{    public virtual ICollection<User> Following { get; set; }    public virtual ICollection<User> Followers { get; set; }    public virtual ICollection<User> BlockedUsers { get; set; }}public class User{    public ApplicationUser User { get; set; }    public string UserId { get; set; }    public ApplicationUser Follower { get; set; }    public string FollowerId { get; set; }}到目前為止我的實(shí)現(xiàn)：public void Configure(EntityTypeBuilder<User> builder){    builder.HasKey(k => new { k.UserId, k.FollowerId });    builder.HasOne(l => l.User)           .WithMany(a => a.Followers)           .HasForeignKey(l => l.UserId);    builder.HasOne(l => l.Follower)           .WithMany(a => a.Following)           .HasForeignKey(l => l.FollowerId);}如何實(shí)現(xiàn)被阻止的用戶字段？public virtual ICollection<User> BlockedUsers { get; set; }