Out let Number.

出线口数。

youdao

There are a number of such climate cowards, but let me single out one in particular: Senator John McCain.

这样的气候派胆小鬼有很多，但就让我来特别点明其中的一位，他就是参议员乔麦凯恩。

youdao

There are already a number of products out there which claim that they will let you listen to someone's mobile conversations, forward their SMSs and tell you the numbers they have dialled ...

市面上已经有在售产品声称可以让你听到别人的手机对话，转发他人的短信，还能告诉你他们拨打了什么号码……

youdao

This would let a small number of players get at Scrolls and test out some of its early code.

BBC: Minecraft makers show off Scrolls project