I've some Qs, would u give me some As

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I'm confusing about these words.  They're about Snowboard W.cup.

so...what's HP,PSL,PGS,SBX, and Big Air? (discipline)

KHAKi

HP stands for HalfPipe, PSL=Parallel Slalom, SBX=Snowboardcross, am i answering your Q's?

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got it! and what about Big Air?

KHAKi

hmm... big air is like each rider performs a trick from a HUGE ramp, and judged by it's height, difficulty, and landing... in the big event like toyota big air, nokia big air... ramps are like really scary, there are riders can do a 1260 spin, you know...

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so cool...~~~!