Unduplicated
a. 无复制品的,无副本的无法匹敌的, 无法模拟的
🗣️ 情景例句
It was so nice meeting you, Mr. Stewart.
很高兴遇见你， Stewart先生。
If I had known her telephone number, I would have called her.
如果我知道她的电话号码，我就给她打电话了。
Growth, however, brings new problems and concerns.
不过，发展也带来了新的问题和顾虑。