名詞 uphill:

1. the upward slope of a hill

形容詞 uphill:

1. sloping upward
   同義詞：acclivitous, rising

副詞 uphill:

1. against difficulties
2. upward on a hill or incline

1. He always falls behind when we're going uphill.
   我們登山時他總是落在后面。
2. The last one mile is all uphill.
   最后一英里全是上坡路。
3. It's uphill work learning to ride a bicycle.
   學騎自行車是件難事。