grade up

• n. 上坡

grade up的用法和样例：

例句

用作名词 (n.)

1. He pedaled his way up the slope.
   他骑着脚踏车上坡。
2. I dismounted and began to push my bicycle up the hill.
   我从自行车下来，开始推着上坡。

词汇搭配

• grade up 上坡
• on the up grade 上升(上坡
• up to grade 合格