Nonillionth
n. (英,德)10的54次幂, (美,法)10的30次幂
🗣️ 情景例句
It has been a learning experience. That's true.
这真是一次学习经验， 真的。
Once bit, twice shy.
一朝被蛇咬，三年怕草绳。
He calls at every house in the street once a month and always asks for a meal and a glass of beer.
他每月对这条街上的每户人家光顾一次，总是请求给他一顿饭和一杯啤酒。