HSK 7-9
进修
jìnxiū动
to undertake advanced studies; to take a refresher course
她到省城医院进修护理技术。
Tā dào shěng chéng yī yuàn jìn xiū hù lǐ jì shù.
She went to a hospital in the provincial capital for advanced nursing training.
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Appears across levels (7-9) in the HSK 3.0 word list.