Concentration fluctuation
[建] 浓度升落
🧩 词语组成解析
fluctuation
[,flʌktʃʊ'eʃən]
n. 波动，涨落，起伏，[物]脉动;动摇不定，踌躇;[生]彷徨变异;
fluctu 波浪 + ation 表示行为、情况、状态、过程、结果 → n.波动, 起伏
🗣️ 情景例句
What was that?
会是什么呢？
This is your last chance. I believe you can make it.
这时你最后的机会，我相信你会成功的。
At present, they are visiting all parts of the country.
目前他们正在全国各地巡回演出，