Pseudopelletierine
假石榴碱
🗣️ 情景例句
These files are highly confidential, please store them properly.
这些文件是高度机密的，请妥善保存。
What shall I send him for his Christmas?
我要送他什么东西作为圣诞礼物？
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。