| [/ˈiːθə(r); ˋiθɚ/] n [U] 用法:
1 colourless liquid made from alcohol, used in industry as a solvent to dissolve fats, etc and (esp formerly) medically as an anaesthetic 醚; 乙醚. 用法:
2 (also aether) (a) (arch or joc 古或谑) the upper air 上空:
Today's news goes into the ether and is soon forgotten. 今天的新闻广播听後不久即置於脑後了.
(b) type of substance formerly believed to fill all space through which light waves were thought to travel 以太. |