Porosint
多孔材料
🗣️ 情景例句
It's a wonderful opportunity, Richard.
这是一个好机会 Richard。
Forgive me for breaking my promise.
原谅我食言。
and no father is confronted with his inability to 'buy'an education for his child.
也不存在父亲无力为孩子支付教育费用而犯难的问题。