Borosilicate flint
[机] 硼硅(酸盐)燧石
🧩 词语组成解析
[机] 硼硅酸盐
flint
[flint]
n. 燧石，火石;（打火机等的）打火石;
🗣️ 情景例句
I was. I came back here last month on vacation.
本来是，不过上个月回来度假。
Thank you.
谢谢你。
I'm tired, said my younger brother as he climbed up to join me.
“我累了，”我弟弟边说边爬上岩石和我汇合。