部位 (bù wèi) means “part (esp. of the body, but also of a vegetable (e.g. the root), or a garment (e.g. the sleeve) etc)”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
疼痛的部位在哪里。
Téngtòng de bùwèi zài nǎlǐ.
Where is the painful part?
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