暗想~~英语怎么写？

Ponder upon......
ponder 就是暗想的意思啦

要看在什么环境下使用了，比如她暗想自己漂亮吗？“Am I beautiful?", she thought to herself.
Think to herself就足以表达这个意思了！或者用divine，有推测活猜想的意思！比如Paul divined that his master's bark was worse than his bite.保罗暗想老板是个嘴硬心软的老头！

muse
ponder
turn over in one's mind