Spirocyclane
螺环烷(专指：螺戊烷)
🗣️ 情景例句
Dad was a busy doctor,
爸爸是个很忙的医生，
The athletes competed for the honor of their country.
选手们为了国家的荣誉而互相竞赛。
Oh, dear! said Miss Yang. Are you sure you've lost it?
“哎呀！”杨小姐说，“你肯定你弄丢了？”