音标: 英 [ˌju:nɪdɪ'rekʃənəl] 美 [ˌju:nɪdə'rekʃənəl]
1. The unidirectional economy that was the oil age.
石油时代是单向流动的经济
2. Which means it could also cut you into all, unidirectional pieces, so be careful.
这意味着它也可以把你们切成 一个个小块 小心点
3. They are razor sharp, designed to cut the wind into ooth, unidirectional flow.
它们很锋利 为了把风削减为平滑的单向流
4. It's a unidirectional ventilation system, so the embers can spread through the vents to anywhere in the building.
这是个单向通风系统 火苗可以顺着通风道 扩散至大楼内任何地方