词汇	水平阶地
释义	水平阶地医level terrace
随便看	break-through stage break through sth breakthrough streamline breakthrough survey break-through survey breakthrough surveying breakthrough sweep efficiency breakthrough technology breakthrough the barrier break through the barrier break through the clouds break through the encirclement and head south Break through the enemy lines break through the heavy encirclement Break through the law break through the sound barrier break through the stereotypes breakthrough time breakthrough time of tracer Breakthrough to College English II breakthrough varieties Breakthrough video of the year break-through voltage breakthrough volume break through western liaoning