pioneers是什麼

是n. 先鋒拓荒者（pioneer 的複數），v. 當先鋒為……開路（pioneer 的三單形式）

We were welcomed by the smiles on the faces of many young pioneers.我們受到了許多滿臉笑容的少先隊員的歡迎。

He wanted them to learn from those great pioneers of America.他希望他們向美國那些偉大的拓荒者學習。