OK. And first of all, you say, wait a minute, x and n?

首先，你肯定会想，等等，x和n？首？

麻省理工公开课 - 计算机科学及编程导论课程节选

In "Backwards Down the Number Line, " guitarist Trey Anastasio, bassist Mike Gordon, keyboardist Page McConnell and drummer Jon Fishman sound genuinely thrilled to be playing together again, as they crank out a five-minute rock 'n' roll anthem that's a heartfelt celebration of enduring companionship.

NPR: Phish: A Heartfelt Celebration Of Companionship

Kinnear made a defensive substitution in the 75th minute, bringing Charles N'Zogbia on for Martins, and though City continued to threaten, it seemed Newcastle might hold on for an unlikely win.

BBC: Newcastle 2-2 Man City

Austrian Scharner broke the deadlock in the 57th minute as he headed home Charles N'Zogbia's right-wing cross, then Jordi Gomez hit Everton's woodwork, but French forward Saha leveled on 62 when he nodded in a Baines corner.

CNN: Adebayor again Manchester City's match-winner