Economic fluctuations
[经] 经济波动, 经济周期
🧩 词语组成解析
n. 起伏现象；变动；波动（fluctuation的复数）
🗣️ 情景例句
Yes. I do.
是的， 我有疑虑。
Now that I've seen how he lives, I know why he needs so much money.
看过了他的生活状态，我现在才知道他为什么需要那么多钱。
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，