HSK 7-9
连夜
liányè副动
that very night; through the night; for several nights in a row
抢修人员连夜恢复供电。
Qiǎngxiū rényuán liányè huīfù gōngdiàn.
The repair crew worked through the night to restore power.
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Appears across levels (7-9) in the HSK 3.0 word list.