unknown number

基本解释

A couple of hours after I left the comment, I got a text message from an unknown number.
我评价过后几个小时，收到了一个陌生号码的信息。
Alternatively, he could model the unknown number of branches using a loop activity, but the loop body is executed serially.
或者，他可以使用循环活动来建模未知数量的分支，但循环体是以串行方式执行的。
Near dawn this morning, police and gunmen exchanged sporadic gunfire at the two luxury hotels, where an unknown number of western hostages were still being held.
今日早晨破晓时分，警察和袭击者在两座豪华酒店零星交火，人数不明的西方人质仍被劫持在酒店中。

Diakite,who is also known as Toumba, escaped the attack and is still at large with an unknown number of soldiers from the presidential guard.

Officials say up to 100 armed militants and an unknown number of students remain inside.
NPR: Pakistani Army Commander Dies in Mosque Siege