HSK 7-9
官兵
guānbīng名
(military) officers and soldiers; officers and men; (old) government troops
官兵连夜赶到洪水灾区。
Guān bīng lián yè gǎn dào hóng shuǐ zāi qū.
Officers and soldiers rushed to the flooded area overnight.
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Appears across levels (7-9) in the HSK 3.0 word list.