Fluorene
芴
🗣️ 情景例句
Dad, your famous apple pie.
爸爸，你最着名的苹果派。
The class made noticeable improvement.
这班有明显的进步。
when H.M.S. Porcupine was put at the disposal of the Royal Society for several cruises,
皇家学会用英国"豪猪号舰艇进行了几次巡航后，