Velocity selector
[化] 选速器
🧩 词语组成解析
selector
[si'lektə]
n. 选择者，选择器;
🗣️ 情景例句
Oh, my pleasure.
噢！不客气。
What was that?
你说什么来着？
In 1975, a primitive machine called the Altair, was launched in the USA.
1975年，美国推出了一台被称为“牛郎星”的原始机型。