Amphicentric
起止同源的(血管)
🗣️ 情景例句
I've only been waiting for an hour.
我已经等了一个小时了。
In college I majored in science, What was your major?
大学时我主修自然科学，你主修什么呢？
I love travelling in the country, but I don't like losing my way.
我喜欢在乡间旅行，但却不愿意迷路。