Fluoro
氟代
🗣️ 情景例句
He was ill at ease at her birthday party.
他在她的生日宴聚会中心神不宁。
Everything hath an end.
任何事物都有它的结果。
This may sound fantastic, but it is easily calculated.
这点听起来令人难以置信，但却很容易计算出来。