optimism造句 151. UN officials are expressing cautious optimism that the latest cease-fire is holding. 152. Optimism about the US economy has been a rare commodity lately. 153. Their optimism is apt to be decidedly conditional and tremulous.英文造句chancellorshipsneak awaybe all onewell-dressedclean bill of healthdiverticulitissound outpilotless aircraftuptownvocational educationclass actionthree times a daysignifierclass actflirtatiouslyrazor-sharpzeusherculesborder patrolummacome to the forenon-conformityjailbirdcard tablecar washcar seatcar manufacturerbimanualcar maker