Chinese
:
污染指數
English
:
pollution index
Cantonese pronunciation
:
wu1 jim5 dzi2 sou3
Putonghua pronunciation
:
wū rǎn zhǐ shù
English pronunciation
:
pəˈluː.ʃən ˈɪn.deks
Subjects
:
General Studies 
Grades
:
Secondary 1 Secondary 2 Secondary 3 Secondary 4 Secondary 5 Secondary 6 
Alphabet
: