用法:
1 ~ (about sth/that...) hopeful; optimistic 充满希望的; 乐观的:
not very sanguine about our chances of success 对我们成功的机会不很乐观 *
sanguine that we shall succeed 自信我们将成功.

用法:
2 having a red complexion 面色红润的.

• decisive
• declaim
• declamation
• declaration
• declare
• declassify
• declination
• decline
• declivity
• decode
• decompose
• decomposition
• decontaminate
• decorate
• decorative
• decorous
• decorum
• decoy
• decree
• decrepit
• decrepitude
• decry
• dedicated
• dedication
• deduce