短语词组短语expectancy effects 期望效应;期待效应Health expectancy 预期健康;健康寿命;健康期望寿命career expectancy 职业期望expectancy map 预期图;预测图expectancy y 预期;预期数额expectancy lifetime 期望寿命life expectancy 预期寿命；平均寿命expectancy theory 期望理论 返回 expectancy