to undergo a physical or mental collapse
Most people crack up under the strain of the job
to laugh uncontrollably
not all it's cracked up to be
informal not as good as one has been led to expect
The restaurant isn't all it's cracked up to be
| 单词 | crack up |
| 释义 | crack upverb intrans informalto undergo a physical or mental collapse Most people crack up under the strain of the job to laugh uncontrollably not all it's cracked up to be informal not as good as one has been led to expect The restaurant isn't all it's cracked up to be |
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