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

English>

German>

Vietnam>

Chinese>

optic Optik optisch optique ottica óptico จักษุ quang học 光学
optical optisch optisch optique ottico óptico ออปติคัล quang học 光学的
optician Optiker opticien opticien ottico óptico ช่างแว่นตา bác sĩ nhãn khoa 配镜师

---

---

---

---

---

Compounds:

---

HSK5000 A1+A2+B1

HSK5000 B2 + C1