"blood-red," late 14c. (late 12c. as a surname), from Old French sanguin (fem. sanguine), from Latin sanguineus "of blood," also "bloody, bloodthirsty," from sanguis (genitive sanguinis) "blood" (see sanguinary). Meaning "cheerful, hopeful, confident" first attested c. 1500, because these qualities were thought in medieval physiology to spring from an excess of blood as one of the four humors. Also in Middle English as a noun, "type of red cloth" (early 14c.).
中文解释
谐音“三棍”-----打三记军棍能打出血来。
实用例句
1. They have begun to take a more sanguine view.
他们的看法已经开始变得乐观起来。
来自柯林斯例句
2. They are less sanguine about the company's long-term prospects.
他们对公司的远景不那么乐观。
来自《权威词典》
3. He seemed quite sanguine about his chances of success.
他看上去对成功的可能性十分乐观.
来自《简明英汉词典》
4. He's remarkably sanguine about the problems involved.
他对所涉及的问题态度极为乐观。
来自辞典例句
5. His hair was very fair, his face naturally sanguine.
