请输入您要查询的英文单词：
单词
pilot balloon
释义
pilot balloon
noun
:
a small unmanned balloon sent up to show the direction and speed of the wind
随便看
sack in
sack moth
sack out
sack race
sack suit
sack-bearer
sack-winged
sackage
sackages
sackbut
sackbuts
sackcloth
sackcloths
sacked
sacked out
sacker
sackers
sacket
sackful
sackfuls
sacking
sacking out
sackings
sackless
sizzlings
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更新时间：2025/3/29 1:07:46