Pebblestone
n. 小卵石
🗣️ 情景例句
So we will be needing more room.
所以我们也将需要更大的空间。
What do you know about the tenth century?
有关十世纪的事你知道些什么？
'He had travelled only seven miles across the Channel when his engine failed and he was forced to land on sea.
但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。