SHEAF
🌾📚🏹
示例
He carried a sheaf of wheat across the field.
他扛着一捆麦束穿过田地。
定义
A bundle of cut grain stalks bound with a band.
捆扎的谷物禾秆束。
A collection of similar items fastened or held together.
一组相似物品,被绑在一起或成束。
A bundle of arrows, usually twenty-four.
一束箭,通常为二十四支。
To bind cut grain into sheaves.
把谷物扎成捆。
In topology: a structure assigning data to open sets.
拓扑学中:给开集赋予数据的结构。