Polytropism
多变性; 同质多晶型
🗣️ 情景例句
You did a good job sewing this dress, I can see that you sewed the sections in the correct order.
你这条裙子做得不错，我看得出来你是按顺序来做缝纫的。
No root,no fruit.
无根就无果。
The development of such a telescope will be one of the great astronomical projects of the twenty-first century.
而开发这样一台望远镜将会是21世纪天文学的一个重要的研究课题。