Retrogradation
n. 逆行, 退化, 倒退\\n[机] 退减作用
✅ 同义词
🔴 反义词
🗣️ 情景例句
I am sorry. I am not free right now.
对不起，我现在很忙。
I read 8 lines.
我读了八行字。
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.
反之，如果恒星很小，维持生命的行星就要在离恒星很近的轨道上运行，而且要有极好的条件才能使生命得以发展，