To her knowledge, the terms had not been used prior to that period, and there appears to be no earlier dated reference to the coinage.

据她所知，这些词在那之前还没被用过，显然没有关于这个词更早的参考信息。

youdao

To her knowledge, the terms had not been used prior to that period, and there appears to be no earlier dated reference to the coinage.

据她所知，这些词在那之前还没被用过，显然没有关于这个词更早的参考信息。

youdao