a tentatively suggested project, scheme, idea, etc put forward to test public opinion or reaction
[orig a balloon sent up to test air currents and wind speed]
| 单词 | trial balloon |
| 释义 | trial balloonnouna tentatively suggested project, scheme, idea, etc put forward to test public opinion or reaction [orig a balloon sent up to test air currents and wind speed] |
| 随便看 |
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