记住 Electron injection：词根拆解 + 名言例句助记法

🧩 词语组成解析

electron [i'lektrɔn]

n. 电子;

injection [ɪn'dʒɛkʃən]

n. 注射;注射剂;[医]充血;（卫星等的）入轨;

in向内，进入+ject投掷，扔+ ion名词后缀 → 向内投掷 → 注射

Our products are of good quality and at a reasonable wholesale price.

我们的产品质量好，而且批发价很合理。

Do you have a TV guide?

你有电视节目吗？

probably vertical, cliffs, and gentle sediment-covered terraces,

乃至垂直的峭壁和沉积物覆盖的缓和的阶梯地带，

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ethyl chloroformate