单词	levelling up
释义	levelling up na. 平整
随便看	fall-back pay fall back pay fallback pay fallback plan fallback position fall-back price fall back procedure fallback procedure Fall Back Program fallback programme fall back recover fallback recovery fall back recovery fallbacks fall-backs fall-back state fall back state fallback state fallback switch fall back to fall back upon fall backward fall bar fall before fall behind 危樯独夜舟危途何策；书窗如梦危阑醉倚人如画危驻紫金山即之愈希即事非今亦非古即今倏忽已五十即今惟见青松在即今漂泊干戈际即今相对不尽欢出歩く出歩ク出歯出水出水出汁出没出涸らし出涸ラシ出港