timely: happening at exactly the right time 及时的；适时的 SYN opportune
A nasty incident was prevented by the timely arrival of the police.
警察的及时到来阻止了一次严重事件。
This has been a timely reminder to us all.
对我们大家来说这个提醒非常及时。
OPP untimely
timely: happening at exactly the right time 及时的；适时的 SYN opportune
A nasty incident was prevented by the timely arrival of the police.
警察的及时到来阻止了一次严重事件。
This has been a timely reminder to us all.
对我们大家来说这个提醒非常及时。
OPP untimely