1. rack one's brains : 绞尽脑汁;
及物动词
名词
购买服装
1. a rapid gait of a horse in which each foot strikes the ground separately
Synonym: single-foot
2. a form of torture in which pain is inflicted by stretching the body
3. a support for displaying various articles
e.g. the newspapers were arranged on a rack
Synonym: stand
4. framework for holding objects
5. an instrument of torture that stretches or disjoints or mutilates victims
Synonym: wheel
6. the destruction or collapse of something
e.g. wrack and ruin
Synonym: wrack
7. rib section of a forequarter of veal or pork or especially lamb or mutton