Hydrindone
茚满酮, 二氢化茚酮
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
A full cup must be carried steadily.
杯满盈，须持稳。
I like writing to my penfriend, but it takes a lot of time.
我喜欢给笔友写信，但那很花时间。