Hundreds of New York subway riders, unencumbered by skirts, trousers or modesty¹, took part in a spontaneous showing of leg despite sub-freezing temperatures.

尽管气温降到了零下，但数百名纽约地铁乘客仍然脱掉裙子、长裤，抛开羞怯，参与到自发组织的“无裤日”活动中来。

A file photo of the 10th annual 'No Pants Subway Ride' on Sunday. Hundreds of New York subway riders, unencumbered by skirts, trousers or modesty, took part in a spontaneous showing of leg despite sub-freezing temperatures.
The 10th annual "No Pants Subway Ride" on Sunday saw hundreds of New York strap-hangers shed outer garments（外套） from the waist down, even as they wore seasonally-appropriate jackets, scarves, earmuffs（耳套，护耳） and other winter garb²（服装，装束） on their upper halves.

At 3 pm sharp, subway riders at six separate meeting points across the city, boarded predetermined（业已决定的） subway cars, engaging in typically unassuming behavior like reading a magazine or staring off into space.

But as soon as the doors shut at the stop before they were due to get off, participants were instructed to stand up, shed their skirts and pants (trousers), which were to be secreted³ into backpacks, and briefcases⁴.

"If anyone asks you why you've removed your pants, tell them that they were 'getting uncomfortable'" instructions to emailed participants said.

Once they exited the train, the commuters stood for a while on the subway platform pantless, providing maximum shock effect to their stunned⁵ fellow riders.

Many participants donned festive⁶ underwear for the occasion, from polka dot（圆点花样） bloomers（灯笼裤） to basic striped boxers⁷, adding another a measure of frivolity⁸（轻浮，轻率） to the unusual yearly happening, which also is staged in some 50 other cities in two dozen countries around the world.