相关单词近义词 single 单一的, complex 复杂的, complicated 复杂难懂的, involved 涉及的, intricate 复杂的, difficult 困难的反义词reducible, 可缩小的临近词IR, Irimi相似词irrecoverable, irredeemable, irredentism, irredentist, irrefutable, irregardless, irregular, irregularity, 返回 irreducible