Adjustable resistance
[机] 可调整电阻
🧩 词语组成解析
🗣️ 情景例句
have become good friends, haven't you?
成了好朋友，不是吗？
I subscribed to a lot of periodicals last year.
去年我订了许多期刊。
You've done very well. It's a pity you missed the sports meeting last week.
你学得不错嘛。很可惜，你错过了上周的运动会。