相关单词同义词valid, important, available, effective, virtual, remarkable, symbol, indication, 近义词 chief, great, important, main, major反义词unimportant临近词signify, significance, significantly, significant to, significant of, significant for, significant aid, significant gas, significant bit, significant byte, significant word, significant link相似词signboard, signed and sealed idiom, signet ring, significance, significant figures, significant other, significantly, signification, 返回 significant