相关单词近义词adj. evident, plain, obvious, certain, positive, sure, glassy, limpid, transparent, empty, free, open, unblocked, unhindered, unimpeded v. acquit, emancipate, free, rid, liberate反义词adj.awful, bad, inferior, lousy, poor, terrible, modern, piece of junkv.block, obstruct临近词clearance, cleanup, Cleary, Clearco, cleared, clearity, clearage, clearall, clearout, clearing, clearkey, clear on 返回 clearable