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
Be prepared to discuss details and be ready to answer questions.
应随时准备好讨论细节和回答对方的疑问。
The President is going to address the nation on television this evening.
总统今晚将向全国发表电视讲话。
He sat with his arms across the chest.
他双臂交叉于胸前的坐在那里。