Ultraviolet mutation
[机] 紫外线突变
🧩 词语组成解析
🗣️ 情景例句
Come and see me later and I'll give you some advice.
稍后来见我，我给你一些建议。
When the phone rang, I was painting upstairs.
当电话铃响的时候，我在楼上画画。
The woman first bought a few small articles.
这位妇女先是买了几样小商品。