Boroxane
硼氧烷
🗣️ 情景例句
That's very nice of you. Where did you get it? It's not a print.
真细心！你从哪儿弄来的？这还不是复制的呢！
When the fruit is scarcest, its taste is sweetest.
物以稀为贵。
It's about20,000 kilometres.
大约有20，000公里。