Level A1 : READ LISTEN TRANSLATE RANDOM
Level A2 : READ LISTEN TRANSLATE
Level B1 A: READ LISTEN TRANSLATE
Level B1 B: READ LISTEN TRANSLATE




(ESS4000) hygienic Definition: If something is hygienic, then it is clean and unlikely to cause disease. Example: →My sister works very hard to keep her entire home as hygienic as possible.








Compounds:
vệ sinh học













HSK5000 A1+A2+B1




HSK5000 B2 + C1