There was a similar accident on the same stretch of track four years ago.

四年前在同一段铁轨上也发生过类似的事故。

youdao

These components all play in parallel, and all four are in parallel with the sound track.

所有这些组件都是并行播放的，而且所有四个屏幕都使用声音轨道并行运行。

youdao

Four world track records were broken in the Beijing games in 2008.

在2008年北京奥运会，四项田径赛世界记录被打破。

youdao

Four years later at the Turin Olympics, Ohno won three short track speed skating medals, a gold in the 500 meters, and bronze in the 1,000 meters and 5,000-meter relay.

VOA: standard.2010.02.23

In addition to Bolt, who claimed the title last year and Federer, who has won it four times in the past, Ethiopian track star Kenesisa Bekele, Spanish cycling champion Alberto Contador, Argentinian football hero Lionel Messi and motor cycling's Valentino Rossi of Italy are also in the running.

VOA: standard.2010.02.11

She left the corporate fast track four years later to raise a family.

WSJ: How Successful Parents Raise Successful Kids

Four track meets and six races later, Robinson was an Olympic champion and a joint world record-holder.

CNN: Golden girl: The first Olympic speed queen

Four track coaches (who are also teachers at Cascade) are alleged to have responded by making the athletes who missed practice do multiple laps around the track as punishment.

FORBES: Blistering Punishment Drill Leads School To Call For Track Coaches' Resignations