Cognateness
n. 同源性
🗣️ 情景例句
when the dog scratched on the front door.
当那狗在抓前门时。
A friend to everybody is a friend to nobody.
广交友，无深交。
Let us suppose that a child suddenly crosses the road in front of you.
让我们假设一个小孩子突然在你前面穿过马路。