Obsidians
(obsidian 的复数) n. 黑曜石
🗣️ 情景例句
Can you do me a favor?
你能帮我个忙吗？
I don't think he will get here on time.
我不认为他会准时到这里。
He uses a lift to go up and down.
他乘电梯上上下下。