英语释义
1. a braced frame serving as a support
2. horse sense 2b
3. a braced framework of timbers, piles, or steelwork for carrying a road or railroad over a depression
4. a frame that is made of a horizontal piece between two vertical pieces and that is used to support something (such as the top of a table)
5. a complex structure that is used especially for supporting railroad tracks over a valley, river, etc.
6. a braced frame consisting usually of a horizontal piece with spreading legs at each end that supports something (as the top of a table)
7. a structure of timbers or steel for supporting a road or railroad over a low place