相关单词近義詞 shakiness 震動, unsteadiness 不穩定性, uncertainty 不確定, insecurity 不安全, instability 不穩定臨近詞rockair, rock, rock classification, rock mess stability, rock boring machine, rock-encased pile, rockwall crane beam, Rock steady failure, rock mass mechanics, rock storing of oil, rock body mechanics, Rockburst proneness 返回 rockiness