| 释义 |
ballast /balˈəst/ noun- Heavy material used to weigh down and steady a ship or balloon
- Broken stone or other material used as the bed of a road or railway
- Anything which provides steadiness or stability
- Something which maintains or stabilizes the current in a circuit (electronics)
transitive verb (pap ballˈasted (Shakespeare ballˈast))- To load with ballast
- To make or keep steady
- To load (Shakespeare)
ORIGIN: Prob Old Swed barlast, from bar bare, and last load ballˈast-heaver noun in ballast Carrying ballast only |