An observation balloon
气象观测气球
🧩 词语组成解析
an
[æn]
art. 一（在元音字母前代替不定代词a）;一任一某一;一个;
balloon
[bə'lun]
n. 气球;热气球;[建]球饰;
vt. 膨胀，涨大;乘热气球飞行;使激增;
adj. 气球状的;（货物等）分量轻而体积大的;（分期付款）最后一笔大数目的;
vi. 乘气球飞行;膨胀;激增;
ball球+oon表名词 → 气球
🗣️ 情景例句
How much notice of cancellation is necessary to get my deposit back?
想把定金拿回来，要提前多长时间通知你才行？
You're too outspoken.
你太直率了。
Three quarters of the world's books and newspapers are written in English.
3/4的书籍和报纸是用英语写的。