vt.升级；提高；改善
adv.向上地
n.升级；上坡
Please click here to upgrade your Player. 请单击此处,升级您的播放器。
Companies need to upgrade servers. 公司需要对服务器升级。
We need to upgrade the pay and status of teachers. 我们需要提高教师的工资和地位。
We must try to upgrade our cattle to the required standard of meat. 我们必须努力提高牛的品级，使之达到所要求的食用肉标准。
The money enabled us to upgrade the town's leisure facilities. 这笔钱使我们得以改善本镇的休闲设施。
We need to upgrade our communications system. 我们需要改善我们的通讯系统。
用作副词 (adv.)After a short break, the climbers continued upgrade. 稍事休息後,攀登者们继续往山上走。
用作名词 (n.)It is complex to maintain them after the upgrade. 升级后的维护很复杂。
Soon the truck come into sight on an upgrade. 不一会儿,卡车就出现在上坡处。
Thefts have been on the upgrade. 盗窃案已在增多。
upgrade的基本意思是使当前的状况再提高一个等级。只用作及物动词,可接名词或代词作宾语。
upgrade可接介词to表示“提高到…标准”。
