电话号码升位的英文：
upgrade telephone number

upgrade是什么意思：
n. 上坡，上升；升级
v. 改良，升级；晋升，提升
  • Companies need to upgrade servers.
    公司需要对服务器升级。
  • He was upgraded to security guard.
    他被擢升为保安。
  • The first is upgrading our infrastructure.
    首先，我们要改善我们的基础设施。
telephone是什么意思：
n. 电话
v. 打电话，通电话
  • Receptionists'telephones are always engaged.
    接待员的电话总是占线。
  • I have to make a telephone call.
    我必须打个电话。
  • I telephoned to thank her.
    我打电话向她道谢。
number是什么意思：
n. 数；号码；算数
v. 给…编号；计算，数
  • The number was fifty.
    该数字为五十。
  • There is safety in numbers
    人多势众
  • It was an irrational number.
    这是一个无理数。

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