Ferricrete
铁砾岩; 铁质壳; 铁质砾岩
🗣️ 情景例句
There must be some way to put my mind to good use.
总会有办法让我发挥才智。
He has been to America.
他去过美国。[曾经有过的经验]
In primitive cultures the obligation to seek and to receive the traditional instruction is binding to all.
在原始文化中，寻求和接受传统教育的义务对全民都有约束力。