suspense
/səˈspens; sə`spɛns/ n[U]
feeling of tenseness, worry, etc about what may happen （对可能发生之事的）紧张感, 担心, 挂虑
We waited in great suspense for the doctor's opinion. 我们焦急万分地等候医生做出诊断.
Don't keep us in suspense any longer
tell us what happened! 别再让我们著急了, 快告诉我们出了什麽事了!