twinning

柯林斯词典

1. N-COUNT Twins are two people who were born at the same time from the same mother. 双胞胎
Sarah was looking after the twins. 萨拉当时正在照看双胞胎。
I think there are many positive aspects to being a twin. 我认为作为双胞胎之一有很多积极的方面。
2. ADJ Twin is used to describe a pair of things that look the same and are close together. 成对的; 成双的[ADJ n]
...the twin spires of the cathedral. …那座大教堂的双尖顶。
3. ADJ Twin is used to describe two things or ideas that are similar or connected in some way. 相似的; 相关的[ADJ n]
...the twin concepts of liberty and equality. …自由和平等这两个相关的概念。