Mitchellite
镁铬铁矿
🗣️ 情景例句
No, no. Please, go ahead.
不用 ，不用。你走吧。
I meet the boy whose aunt is a model.
我遇到那个男孩的姑妈是模特。
They had laboured for three years to produce this floating work of art;
瑞典人辛辛苦苦干了3年才建成这件水上艺术品，