HSK 7-9
赐教
cìjiào动
(honorific) to impart one's wisdom; to enlighten
这份方案还请专家赐教。
Zhè fèn fāng àn hái qǐng zhuān jiā cì jiào.
We respectfully ask the expert to advise us on this plan.
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Appears across levels (7-9) in the HSK 3.0 word list.