Fluorapatite
[医] 氟磷灰石
🗣️ 情景例句
What does NATO mean?
NATO是什么意思？
Grain by grain,and the hen fills her belly.
一颗接一颗，母鸡填饱肚。
Some people on the bank called out to the man in the boat, but he did not hear them.
岸上的一些人对着小船上的人高喊，但他没有听见。