Cycloaddition
n. [化]环加成( 指不饱和分子化合成一环状化合物的反应)
🗣️ 情景例句
But Alexandra and I
但Alexandra和我
Sit down.
坐下！
Recent scientific evidence seems to indicate that this assumption is incorrect.
但近期科学研究发现，好像这种假设是不正确的。