Phthalal
邻苯二亚甲基
🗣️ 情景例句
Enjoy!
那就享受吧.
A good name keeps lustre in the dark.
好的名声在黑暗中也会光芒四射。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。