Icrf
国际天球参考架
🗣️ 情景例句
Is there a credit plan available?
我可以分期付款吗？
I'm not accustomed to that kind of social situation.
我不太习惯那种社交场合。
The episode could reasonably serve as a unique epic of royal espionage!
这一幕历史可以说是王室谍报活动中最精彩的篇章。