Pebblestone
n. 小卵石
🗣️ 情景例句
Good-bye.
再见。
Don't know how to play the game.
不上道。
and one odd finding that makes the problem puzzling is that it looks very much as if sleeping is not simply a matter of giving the body a rest.
一项使人对这个问题感到困惑的奇怪的发现是，睡眠在很大程度似乎并不仅仅是为了使身体得到休息。