in use片语KK [ɪn jus] /ɪn jus/发音片语1使用中、被占用The meeting room is in use until three o'clock.会议室要到三点才用完。2仍在使用、通行This spelling is still in use in older documents.这种拼法在较旧的文件中仍在使用。用这个字练口说→