adj.乐天的；自信的；红润的
n.血红色
His private expectations were not so sanguine. 他私下的期望并不是那么乐观。
We are sanguine that we shall be succeeding. 我们自信会成功。
His hair was very fair, his face naturally sanguine. 他的头发很淡，脸色天生红润。
