相关单词同义词casual, sight, randomly, casually, 近义词 extemporaneous 即兴的, unprepared 无准备的, impromptu 即席的, unrehearsed 未经排练的, improvised 即席而作的, spontaneous 自发的，自然的，本能的..., informal 非正式的, casual 非正式的, nonchalant 若无其事的, easygoing 随和的, indifferent 漠不关心的, offhanded 立即的, offhandedly 立即地, ad-lib 即兴演唱, extempore 即兴的, off-the-cuff 未预备的, extemporary 当场的临近词Offeq, off, Off-Shoot-O, off-peak load, off binary code, Offroad vehicle, offsite control, Off-body time, off one's guard, offgas analysis, off-book fund, off-axis gain相似词offensive, offer, offer sheet, offering, office, office building, office hours, office junior, 返回 offhand