| 单词 | subsonic |
| 释义 | subsonic (once / 114751 pages) adj WORD FAMILY subsonic: subsonically+/sonic: sonically, subsonic, supersonic/supersonic: supersonically USAGE EXAMPLESSeat-per-mile operating costs would likely be “comparable to subsonic business class,” according to the company’s website. Time(Nov 16, 2016) The subsonic 747 was expected to become obsolete after a production run of about 400 craft. BBC(Aug 31, 2016) The horse didn’t seem happy about it, but he slowed to subsonic as they zipped through the city streets. Rick Riordan, The Son of Neptune(2011) adj (of speed) less than that of sound in a designated medium aircraft flying at subsonic speeds Ant sonic, transonic (of speed) having or caused by speed approximately equal to that of sound in air at sea level supersonic(of speed) greater than the speed of sound in a given medium (especially air) |
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