sanguine　英 ['sæŋɡwɪn] 美 ['sæŋɡwɪn]

基本释义：

This is both an adjective and a noun.As an adjective,it means very hopeful or optimistic.

adj.乐天的；自信的；红润的
n.血红色

例句：

1.His private expectations were not so sanguine.
他私下的期望并不是那么乐观。
2.We are sanguine that we shall be succeeding.
我们自信会成功。