Polyiron
多晶形铁, 树脂羰基铁粉
🗣️ 情景例句
The editorial in this paper has my friend Nat Baker real upset.
这张报纸上的社论着实令我的朋友Nat Baker不高兴。
A man may lead a horse to the water, but he cannot make him drink.
牵马到河易，强马饮水难。
It can be unpleasant to live even several miles from an aerodrome;
即使住在离机场几英里以外的地方，机场的噪音也会使人难受。