Fluctuations
n. 起伏现象；变动；波动（fluctuation的复数）
🗣️ 情景例句
It's nice to meet you.
很高兴见到你 。
How much is this land per acre?
每英亩地要多少钱？
Excuse me! Can you tell me the way to the museum, please?
劳驾！你能告诉我去博物馆怎么走吗？