1. All what we ever had left just as a lethe but cannot be dropped. 所有什么，我们都已经离开正如一位lethe，但不能被省略。
2. The new design of external ball surface lethe, and the effect of using were introduced. 提出了新的设计方案，介绍了新设计的外球面车床的使用效果。
3. None in our day and age have encountered the lethe wyvern face to face at least none that have survived to tell the tale. 至少在我们的时代里，还没有人可以和它面对面接触，并且活着回来告诉我们“冥河飞龙是真的存在的！”
英英解释
n.
1. (Greek mythology) a river in Hades; the souls of the dead had to drink from it, which made them forg
