Trial balloon
01
试验气球, 探空气球
a balloon sent up to test air currents
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
trial balloons
1.1
试探气球, 反应测试
a thing that is done or introduced in order to test the public's opinion
例子
The company floated the idea as a trial balloon before changing its pricing.
这位政治家在演讲中提到潜在的增税，以观察公众的反应，从而抛出了一个试探气球。
