Halvans
雜質多的礦石
??? 情景例句
If someone doesn't buy it before then,
如果在此之前沒有人買走的話。
David would get up early in the morning to deliver newspaper.
戴維一早起床就去送報紙。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把這種儀器安裝在距震源700多英里遠的地方，