Keystoner
n. 美国宾夕法尼州人之绰号
🗣️ 情景例句
I owe you an apology for what I did last night.
我应该为昨天晚上的事向你道歉。
It is a pay phone .
那是一个付费电话。
Indeed, we lack practice and experience nowadays in dealing with primitive conditions.
确实，我们今天缺乏对付原始环境的实践和经验。