Rheostat
n. 电阻器\\n[化] 变阻器
📖 牛津释义
rheostat
n
instrument used to control the current in an electrical circuit by varying the resistance in it 变阻器.
🗣️ 情景例句
Do you have a picture?
你们有他的照片吗?
and realized that it was a sign that the child was growing up and developing valuable powers of observation and independent judgment,
并且意识到这象征着孩子们正在成熟和发展宝贵的观察力、独立判断力,
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