请输入您要查询的英文单词:
单词
trial balloon
释义
trial balloon
noun
1.
:
a balloon sent up to test air currents and wind velocity
2.
:
a project or scheme tentatively announced in order to test public opinion
<
trial balloons
… leaked to the press — Don Pryor >
— compare kiteflying
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更新时间:2025/10/30 4:40:36