a player of the serving side shall serve from the left service court when the serving side has scored an odd number of points in that game.
当发球一方得分为奇数分时,发球一方的球员应在本方场地的左发球区发球。
a player of the serving side shall serve from the right service court when the serving side has not scored or has scored an even number of points in that game.
当发球一方未得分或得分为偶数分时,发球一方的球员应在本方场地的右发球区发球。
if the serving side fails to return the shuttlecock , it losses the serve;