bipolarKK [baɪˋpolɚ] /baɪˈpoʊlɚ/發音bi- 二、雙+polar 極的→有兩個極的展開收合bi-字首二、雙polar單字極的字面：有兩個極的兩個極端 → 情緒在兩極之間擺動，即躁鬱症的形容詞1躁鬱症的、雙極性情感障礙的醫學She was diagnosed with bipolar disorder in her late twenties.她快三十歲時被診斷出躁鬱症。2情緒起伏大的、喜怒無常的口語My boss is so bipolar about this project that nobody dares to speak.我老闆對這個專案的態度反覆無常，沒人敢開口。3兩極的、兩極化的、對立的The debate has become completely bipolar, with no middle ground left.這場辯論已經完全兩極化，毫無中間地帶。4雙極的電子The circuit uses a bipolar transistor to amplify the signal.這個電路用雙極性電晶體來放大訊號。名詞1躁鬱症口語He has lived with bipolar for more than a decade.他已經與躁鬱症共處十多年了。