例句與造句

1. our company owns a mining area of 20, 000, 000 square meters with rich graphite deposit
   萬(wàn)平方米的礦區(qū)，石墨儲(chǔ)量非常豐富，年產(chǎn)各種石墨產(chǎn)品10
2. It's difficult to find graphite deposit in a sentence. 用graphite deposit造句挺難的