拢音lǒng∥yīn使声波在一定范围内不分散,听起来声音更清晰{(of a building) quality of sound gathering and amplification to make sound wave carry well and sound clearer within a given scope}: 在露天剧场唱不～。{The open-air theatre does not carry sound well. or The acoustics of the open-air theatre are not good.}l