| 释义 |
DEFINITIVE EXAMPLES 权威例句〔ether〕Physics An all-pervading, infinitely elastic, massless medium formerly postulated as the medium of propagation of electromagnetic waves.【物理学】 以太，能媒：一种在以前被假定为电磁波的传播媒质并具有绝对连续性、高度弹性的极其稀薄的媒体美国传统〔insubstantial〕Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.火星的大气层极其稀薄,几乎全部由二氧化碳构成。柯林斯高阶These sheep are a relatively/comparatively/extremely rare breed.这些羊是一种相对/比较/极其稀有的种类。剑桥国际 |