the act of improving something (especially machinery) by raising it to a higher grade (as by adding or replacing components); "the power plant received a new upgrade"
hardware that provides better performance than an earlier version did
the property possessed by a slope or surface that rises 同义词：rise, rising slope,
a reservation that is improved; "I got an upgrade to first class when coach class was full"
software that provides better performance than an earlier version did
an upward slope or grade (as in a road); "the car couldn''t make it up the rise" 同义词：ascent, acclivity, rise, raise, climb,
to improve what was old or outdated; "I''ve upgraded my computer so I can run better software"; "The company upgraded their personnel"
give better travel conditions to; "The airline upgraded me when I arrived late and Coach Class was full"
get better travel conditions; "I upgraded to First Class when Coach Class was overbooked"
rate higher; raise in value or esteem
give a promotion to or assign to a higher position; "John was kicked upstairs when a replacement was hired"; "Women tend not to advance in the major law firms"; "I got promoted after many years of hard work" 同义词：promote, advance, kick upstairs, raise, elevate,
Upgrading is the process of replacing a product with a newer version of the same product. In computing and consumer electronics an upgrade is generally a replacement of hardware, software or firmware with a newer or better version, in order to bring the system up to date or to improve its characteristics.
例句与用法
1.
He ran beside his dog on the upgrades . 他伴着他的狗跑上斜坡。
2.
Thefts have been on the upgrade . 盗窃案已在增多。
3.
Socialism is on the upgrade . 社会主义蒸蒸日上。
4.
Recently i had the privilege of inaugurating 45 new upgraded thanas . 最近，我有幸参加了四十五个较高一级的“塔纳”的成立典礼。
5.
His main task is to determine how we can best upgrade the services we offer our major clients . 他的主要任务是确定如何最大限度地提高我们对主要主顾的服务质量。
6.
Gaps are necessary in order to upgrade information without erasing the following or the preceding record . 设置间隙是为了更换信息时不致抹去后边的或前边的记录。
7.
After the upgrade , with the new version of 在完成升级后，您现在已可以藉由新版的
8.
Upgrading business objects reporting solutions 升级business objects报表解决方案
9.
Upgrade an earlier version of analysis services 升级早期版本的analysis services
10.
This enables a simple and gradual upgrade process 这将启用简单的渐进升级过程。
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