sheet anchor
英式
- an additional anchor for use in emergencies.;a very dependable person or thing.
noun: sheet anchor, plural noun: sheet anchors
- 更多解釋
- A large extra anchor intended for use in an emergency.
- IPA[SHēt ˈaNGkər]
美式
- a person or thing that is very dependable and relied upon in the last resort.
Oxford American Dictionary