扩建kuòjiànto extend (a building, runway, etc.)HSK 7-9PronunciationkuòjiànExample sentence机场正在扩建第二条跑道。Jīchǎng zhèngzài kuòjiàn dì èr tiáo pǎodào.The airport is extending a second runway.Read and choose an answerOne fixed sampleExplore a sample