Copaiva
n. 古巴香胶, 苦配巴香胶, 古巴香
🗣️ 情景例句
Thank you.
谢谢你。
During your first year of college,did you make straight A's?
在你大学的第一年期间，你一直的得A？
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。