| 单词 | crack up |
| 释义 | Word Frequency crack upverb (adverb) 1. (intransitive) to break into pieces 2. (intransitive) informal to undergo an emotional breakdown 3. (transitive) informal to present or report, esp in glowing terms it's not all it's cracked up to be 4. informal, mainly US and Canadian to laugh or cause to laugh uproariously or uncontrollably noun crackup informal 5. an emotional breakdown 6. a collapse 7. US a crash a head-on crackup Word Frequency crack-up(ˈkrækˌʌp) noun informal 1. an emotional breakdown 2. a collapse 3. US a crash a head-on crack-up |
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