Etymologies
n. 词源学, 词源说明( etymology的名词复数 )
🗣️ 情景例句
Always full of surprises.
总是出人意表。
To learn how to count
学习记账
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。