Levulinamide
4-氧(代)戊酰胺
🗣️ 情景例句
The Sydney Olympics attracted more than one million new travelers into Australia.
悉尼奥运会吸引了超过一百万新的旅游者到澳大利亚。
This part of the country is very hilly.
这个国家这一部分有很多丘陵。
Our knowledge of the universe is growing all the time.
我们对宇宙的认识一真在增长。