例句-1: "Something important to all of us happened on July 20, 1969. That's the day astronaut Neil Armstrong stepped down from the spaceship Eagle and became the first human to set foot on the moon. History will remember him as one of the trailblazers in man's exploration of space."
例句-2: "Sometimes the real trailblazers never get in the history books. One of the greatest inventors of all time was the inventor of the wheel, but nobody knows his -- or her -- name."
例句-3: "Today the XYZ Corporation announced it is making a new super-computer which will be on the cutting edge of data processing. It works at twice the speed of any computer now on the market."
例句-4: "For the past ten years, younger composers like Philip Glass have been on the cutting edge in composing operas that defy most of the traditional rules of writing music."