"Japanese teacher" in Chinese is "日语老师".
Pinyin: rì yǔ lǎo shī
Where:
- 日 (rì) means "sun" but also refers to Japan or Japanese language
- 语 (yǔ) means "language"
- 老师 (lǎo shī) means "teacher"
So "日语老师" (rì yǔ lǎo shī) specifically refers to a teacher of the Japanese language.