Objectionable impurities
[化] 有害杂质
🧩 词语组成解析
objectionable
[[əb'dʒɛkʃənəbl]]
a. 会引起反对的, 令人讨厌的
n. 杂质（impurity的复数）
🗣️ 情景例句
When does he arrive?
他什么时候到？
The chicken will be dinner.
晚餐要吃鸡肉。
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。