HSK 7-9
扩建
kuòjiàn动
to extend (a building, an airport runway etc)
机场扩建工程明年完工。
Jīchǎng kuòjiàn gōngchéng míngnián wángōng.
The airport expansion will be completed next year.
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Appears across levels (7-9) in the HSK 3.0 word list.