| 单词 | roller-coaster |
| 释义 | roller-coaster /roh"leuhr koh'steuhr, roh"li-/, v.i. 1. to go up and down like a roller coaster; rise and fall: a narrow road roller-coastering around the mountain; a light boat roller-coastering over the waves. 2. to experience a period of prosperity, happiness, security, or the like, followed by a contrasting period of economic depression, despair, or the like: The economy was roller-coastering throughout most of the decade. adj. 3. of, pertaining to, or characteristic of a roller coaster. 4. resembling the progress of a ride on a roller coaster in sudden extreme changeableness. [1960-65] |
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