expectancy
/ɪkˈspektənsɪ; ɪk`spɛktənsɪ/ n[U]
state of expecting or hoping 预料; 预计; 期待; 盼望; 指望
a look/feeling of expectancy 期望的神色[心情]
She went to meet him with an air of expectancy, ie as if expecting him to bring sth. 她去见他时带著有所期待的神情. Cf 参看 life expectancy (life).