Pediplane
[地质]山麓侵蚀平原
🗣️ 情景例句
but this is an important opportunity.
但这是一次很重要的机会。
What were you doing when I called?
我打电话给你时你在干吗？
It's our favourite subject of conversation.
天气是我们最喜欢谈论的话题。