Chromone
色酮, 苯并-γ-吡喃酮
🗣️ 情景例句
Was it serious?
病得很重吗？
She spends much of her leisure times watching TV.
她花很多空闲时间看电视。
After years of conditioning, most of us have developed an unshakable faith in railway timetables.
经过多年的适应，大多数人对火车时刻表产生了一种不可动摇的信念。