Apropos of what you were just saying.... 关於你刚才所说的话....
Apropos our date for lunch, I can't go. 关于我们的午餐约会,我不能去
Apropos, I have something to tell you. 顺便,我有点事跟你说。
apropos
[ adj ]
of an appropriate or pertinent nature
<adj.all> [ adv ]
at an opportune time
<adv.all> your letter arrived apropos
introducing a different topic; in point of fact
<adv.all> incidentally, I won't go to the party
Apropos \Ap"ro*pos`\ ([a^]p"r[-o]*p[=o]`), a. & adv. [F. [`a] propos; [`a] (L. ad) + propos purpose, L. proposium plan, purpose, fr. proponere to propose. See {Propound}.] 1. Opportunely or opportune; seasonably or seasonable.
A tale extremely apropos. --Pope.
2. By the way; to the purpose; suitably to the place or subject; -- a word used to introduce an incidental observation, suited to the occasion, though not strictly belonging to the narration.
Hall excelled in Air (which despite its theme echoes Debussy's 'Poissons d'or' pretty generously), Zolinsky in the spectacular Fire (here 'Feux d'artifice' was more apropos).
Hundreds of people who tried to win bit parts in the film "Everbody Wins" are hoping that the title proves to be apropos.
Nor do the multitudinous echoes of Dante, Joyce and other great writers ever seem less than clever and apropos.
I'd catch a phrase that I thought was apropos; I'd put it on the little recorder." The album is on their new label, Fly Records.