Background knowledge
背景光补偿；背理测验；背景知识
🧩 词语组成解析
🗣️ 情景例句
You really must have your wits about your when dealing with such people.
跟这类人打交道，你必须格外警觉。
What's learnt in the cradle lasts till the tomb.
小时学过的，至死不忘记。
We'll get it right out for you.
我们马上就出货。