mathematical expectation

• 数学的期望值

mathematical expectation的用法和样例：

例句

1. He labored under the weight of great expectation.
   巨大的期望值使他备感压力。
2. Just by coming to Highbury, Bergkamp raised the bar of expectation at Arsenal.
   只是来到海布里，博格坎普就提高了人们对阿森纳的期望值。