Keystone state
na. 宾夕法尼亚州的浑名\\n
🧩 词语组成解析
keystone
[['ki:stəun]]
n. 拱顶石, 楔石, 重点
🗣️ 情景例句
I guarantee you it would go very well in the hospitals.
我保证在医院这种计划会推行得很好。
Cat got your tongue?
怎么不说话了？
Sorry! It's not a very good line. Could you speak more clearly, please?
对不起！电话线路不太好。你能说清楚一些吗？