https://www.stgss.edu.hk/wp-content/themes/osmosis/images/empty/thumbnail.jpg 150 150 STGSS STGSS https://www.stgss.edu.hk/wp-content/themes/osmosis/images/empty/thumbnail.jpg 23rd September 2019 24th July 2020 2019/2020 申請人須知及表格