Chloroxiphite
绿铜铅矿
🗣️ 情景例句
Why are you back so early?
你们怎么这么早回来？
I'm reading a book.
我在看书。
engineers may soon be free to let their imaginations soar without being penalized by expensive failures.
因此，工程技术人员可能很块就可充分发挥他们的想像力，而不会因失败而造成经济上的损失。