But that is now an untimely subject.

但那是一个现在时宜的题目。

She thought my mirth improper.

她认为高兴是时宜的。

Dave's untimely return.

戴维时宜的归来。

I will not dwell on, nor mourn over, our untimely decay, nor reproach my paleface brothers with hastening it as we too may have been somewhat to blame.

想细述或哀时宜的衰败；也想斥责那些加速了衰败过程的白脸兄弟，因为对此可能也有责任。