Polyiron
多晶形铁, 树脂羰基铁粉
🗣️ 情景例句
I should have saved some money.
我早该存些钱。
Don't touch it.
不要碰它。
There was less food for birds and also for the prairie dog, a kind of animal which lives in holes in the ground.
供鸟类吃的食物少了，供草原犬鼠（一种生活在地洞里的动物）吃的食物也少了。