Background radiation
[化] 本底辐射\\n[医] 本底放射, 本底辐射
🧩 词语组成解析
🗣️ 情景例句
Sorry to be a pest.
不好意思打扰你。
Where do you want us to put the couch?
你想让我们把沙发放到哪里？
If a shop assistant told him she had not heard of it, he would pretend to be considerably put out.
要是女售货员告诉他从未听说过这些东西，他会装出十分遗憾和不安的样子。