Ballas
半刚石(工业用金刚石), 玫红尖晶石
🔁 扩展释义
【化】 半刚石(工业用金刚石)
🗣️ 情景例句
What power options are available? ( steering, brakes, windows.... )
（这种汽车）有中控系统吗？
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
Jim, how long have you been at this school?
吉姆，你到这学校有多么时间了？