中英數常 [－－数－]

Jyutping zung1 jing1 sou3 soeng4
Pinyin zhōng yīng shù cháng

Definitions (粵典–words.hk)
  1. 名詞、香港
    中文​、​英文​、​數學​、​常識​四科​，​被視​為​香港​小學​教育​最​重要​嘅​科目
    Chinese, English, Mathematics and General Studies—considered the four most important subjects in primary school education in Hong Kong