"expanse of dark igneous rock," 1794, from Swedish trapp (Torbern Bergman, 1766), from trappa "stair," related to Middle Low German trappe "staircase" (see trap (n.)). So called from the step-like appearance of the rock.
traps (n.2)
"drums, cymbals, bells, etc.," 1925, from earlier trap drummer (1903) "street musician who plays a drum and several other instruments at once," perhaps from traps "belongings" (1813), shortened form of trappings.
实用例句
1. Wool traps your body heat, keeping the chill at bay.
毛织品能够保暖御寒。
来自柯林斯例句
2. They dug trenches in their path and set booby traps.
他们在小路上挖深沟设饵雷。
来自柯林斯例句
3. Badly-built kit cars can be death traps.
质量低劣的组装车可能会有安全隐患。
来自柯林斯例句
4. Police were checking the area for booby traps.
警察在这个地区探测饵雷。
来自柯林斯例句
5. The stock market is full of traps for the unwary.