A humble and arduous official duty, especially in old times; a thankless or difficult task.
小张虽然接手的是报冰公事，但他依然兢兢业业，从不抱怨。
Although Xiao Zhang took on a humble and arduous task, he remained diligent and never complained.
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A humble and arduous official duty, especially in old times; a thankless or difficult task.
Frequency: