Varicap
(=variable-capacitance diode)变容二极管, 压控变容器
🗣️ 情景例句
What's that?
什么事？
No safe wading in an unknown water.
未知水深浅，涉水有危险。
In a few days I was learning and enjoying it like any child.
几天之后，我像一个孩子那样学习起来--而且学得很开心。