Eisenkiesel
铁石英; 含赤铁石英
🗣️ 情景例句
She's unhappy
她很不高兴。
He has been to America.
他曾去过美国。[表示曾经有过的经验]
Oddly shaped forms that are suspended form the ceiling and move in response to a gust of wind are quite familiar to everybody.
人们所熟悉的是悬挂在天花板上、造型奇特、随风飘荡的雕塑品。