Unsubstituted
未被取代的
🗣️ 情景例句
I had never been there before.
我以前从来没有去过那里 。
This alone made our nine-day trip worthwhile.
光这件事我们九天的旅行就非常值得。
Whether they will ever become future Olympic champions, only time will tell.
他们将来是否能成为奥林匹克的冠军，这只能由时间来作出回答。