英语单词 Acid concentration：含义·读音·用法·记忆技巧

🧩 词语组成解析

acid ['æsɪd]

adj. 酸味的;尖刻的;酸的;酸性的; n. <化>酸;酸味物质;

acid尖，酸，锐利 →酸；酸的，酸性的

concentration ['kɑnsn'treʃən]

n. 集中;专心;关注;浓度;

con共同+centr中心+ation后缀→集中；浓缩

I certainly am. May I help you?

我是，我能帮您什么忙吗？

I wish you had called me back the next day,as I had asked you to.

我希望你明天打电话给了我回来,正如我要你做的。

Hi, Jim! It's a long time since we met last!

你好，吉姆！从我们上次见面后已经很久了！

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