Rheostat
n. 電阻器\\n[化] 變阻器
?? 牛津釋義
rheostat
n
instrument used to control the current in an electrical circuit by varying the resistance in it 變阻器.
??? 情景例句
Do you have a picture?
你們有他的照片嗎?
and realized that it was a sign that the child was growing up and developing valuable powers of observation and independent judgment,
并且意識到這象征著孩子們正在成熟和發展寶貴的觀察力、獨立判斷力,
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