upper-surface blowing
基本释义
上表面喷气
实用场景例句
学术演讲
The ancient astronaut theory suggests that certain structures were constructed unaided by modern technology.
古代宇航员理论认为，某些结构是在未经现代技术协助的情况下建造的。
The study demonstrated that students could improve pronunciation unaided by audio guides.
该研究表明，学生可以在没有音频指南协助的情况下提高发音。
Survivors reported that they navigated through the wilderness unaided, relying on instinct.
幸存者报告称，他们未经协助穿越了荒野，依赖本能。
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