Selective headstock
[化] 变速箱; 床头箱
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
n. 头座, 机头座\\n[机] 车头, 主轴台
🗣️ 情景例句
Well, it's small, but clean.
噢， 它是小了点， 但是干净。
I'd like to introduce you to our company. Is there anything in particular you'd like to know?
我将向你介绍我们的公司，你有什么特别想知道的吗？
What was the population of the world in 1950?
1950年世界人口是多少？