The Badminton Bible has a section on 平高球(flick serve) and 平射球(drive
serve) http://www.badmintonbible.com/articles/serving-guide/basic-technique/forehand-flick-and-drive-serve-technique.php
Highly recommended reading for beginners. The author is a coach certified by
Badminton England.
平高球 makes shuttle go upwards. 平射球 uses much the same technique, except
you hit the shuttlecock flatter over the net, rather than upwards.
平射球 is sometimes used against C or lower players to win easy points. B+
playe
