Operational key
[计] 操作键
🧩 词语组成解析
key
[kiː]
n. 钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调;
vt. 键入;锁上;调节…的音调;提供线索;
vi. 使用钥匙;
adj. 关键的;主要的;
🗣️ 情景例句
But it's kind of small also. We must've bought the wrong size.
但它也有点小了。我们一定买错了尺寸。
Thank you! Same to you.
谢谢。你也一样。
Here and here. And I can only move my arm as much as this.
这儿和这儿。我只能这样摆动手臂。