late 14c., "large snake," from Latin boa, type of large serpent mentioned in Pliny's "Natural History;" origin unknown (in Middle English folk etymology associated with Greek bous "ox"). Extension to "snake-like coil of fur worn by ladies" is from 1836. The popular name boa constrictor is from 1788.
实用例句
1. She wore a large pink boa around her neck.
她脖子上围着一条粉色长羽毛围巾。
来自柯林斯例句
2. The boa feeds on birds and small mammals.
蟒主要吃鸟和小的哺乳动物.
来自《简明英汉词典》
3. The switch array consistsof six interconnected BOA - type - X waveguide.
该阵列单元采用BOA型 X 波导,由六个单元集成于同一衬底上构成4×4光开关阵列.
来自互联网
4. A new structure of BOA ( BOA - Bifurcation Optique Active ) electro - optic switch is proposed in this paper.