性能等级用英文怎么说

性能等级的英文：
performance rate

• She gave a respectable performance.
  她的演出还不错。
• The performances have been absolutely phenomenal.
  表演绝对精彩。
• It's an insufferably cute performance.
  这是一场不能忍受的矫揉造作的表演。
• Farewell performance; swan song:
  告别演出
• The novel is considered a brilliant performance.
  这部小说被认为是杰出的佳作。

• cumulative rating
  累积收听率
• These bonds have an AAA rating.
  这些债券的信用度是3A级的。
• To rate too low;underestimate.
  低估对…估价太低；低估
• A Lump Sum Rate of ...
  费用合计…
• To reduce in rank or rating;demote.
  使降级降低级别或降级；使人降级