Telescopic boom
[化] 伸缩臂
🧩 词语组成解析
a. 望远镜的, 用望远镜看到的, 套管式的, 伸缩的\\n[医] 望远[镜]的
boom
[bʊm]
vi. 发出隆隆声;快速发展;暴涨;
vt. 以低沉而有回响的声音发出;使繁荣;使迅速发展;
n. 隆隆声;繁荣;激增;
🗣️ 情景例句
Dad.
爸爸。
This week he took his first vacation from work in five years.
五年来，他本周破例第一次休假。
The train was late but nobody knew the reason for the delay.
火车晚点了，但没人知道为什么。