单词	perennial frost
释义	perennial frost 永冻土
随便看	nuclearizing nuclear jaundice nuclear know-how nuclear lamina nuclear land nuclear laser nuclear layer nuclear leak nuclear leak dection system nuclear legislation nuclear level nuclear level density nuclear-level density nuclear-level spacing nuclear liability nuclear Lie group nuclear life-time nuclear lifetime nuclear lifetime limit nuclear limitations nuclear linear mapping nuclear liquid-air cycle engine nuclear localization signal nuclear locally convex nuclear log 不可捉摸不可揆度不可摸捉不可收拾不可救疗不可救药不可教训不可枚举不可理喻不可磨灭商股商船商行商行为商誉商计商讨商议商请商调