Background impurity
[化] 本底杂质
🧩 词语组成解析
🗣️ 情景例句
I don't want to give you a final opinion
我不想给你总结的意见
She won a scholarship to the state university.
她获得就读洲立大学的奖学金。
wind, earth movements or tremors, and the gravitational pull of the moon and the sun.
风、地球的运动或震颤和月亮、太阳的引力。