Who can tell me what is ' upgrade ' ?

1. 上坡
Soon the truck came into sight around a bend and on an upgrade.
不一會卡車就出現在一個拐彎和上坡處。
2. 升級;提高品級(或標準)
These products are available with many different options and upgrades.
這些產品有許多不同的選擇和升級品。
ad.
1. 往山上,上坡
After a short break the climbers continued upgrade.
稍事休息後,攀登者們繼續往山上走。
vt.
1. 使升級;提高;提升
Efforts to upgrade the schools must come from the community.
改進學校的努力必須來自該社區。
2. 以高檔貨的價格出售(低檔貨);提高...的價格
When several offers came in the house owner upgraded the price.
當有幾個人要買這棟房子時,房主提高了房價。

noun.
1. 上坡
Soon the truck came into sight around a bend and on an upgrade.
不一會卡車就出現在一個拐彎和上坡處。
2. 升級;提高品級(或標準)
These products are available with many different options and upgrades.
這些產品有許多不同的選擇和升級品。
adverb.
1. 往山上,上坡
After a short break the climbers continued upgrade.
稍事休息後,攀登者們繼續往山上走。
vt.
1. 使升級;提高;提升
Efforts to upgrade the schools must come from the community.
改進學校的努力必須來自該社區。
2. 以高檔貨的價格出售(低檔貨);提高...的價格
When several offers came in the house owner upgraded the price.
當有幾個人要買這棟房子時,房主提高了房價。

提高, 提升, 升級的意思
to promote, to grade up, to advance to the higher class