Echitin
[化] 厄蚩亭; 鸡骨常山酸
🗣️ 情景例句
I am sorry. I am not free right now.
对不起，我现在很忙。
I couldn't wait any longer for you!
我等你等得不耐烦了！
These objects, however, were different.
这些展品却使人大开眼界。