Spiroheptane
螺[3.3.]庚烷
🗣️ 情景例句
This couple treats their adopted child as their own.
这对夫妇把他们的养子视如己出。
I get up at 6 o'clock every day.
我每天在6点钟起床。
Which number do I need, please?
请问我需乘哪路车？