Substances
n. 物质( substance的复数形式 ); 实质; 物体; [哲学]1)。 本质
🗣️ 情景例句
No, thanks.
不啦，谢谢。
You play the piano beautifully.How much do you practice every day?
你完美地弹钢琴,你每天花多少时间练习？
and reduces correspondingly the amount of economic resources that could be used for developing the country.
从而相应地减少了那部分可以用来发展国家的经济资源。