subtle的词源是subt
例句
1、
The tactics employed can range from overt bullying to subtle emotional blackmail.
从公然威吓到微妙的情感胁迫，各种战术都用上了。
2、
He was a little slow this morning and paid no attention to her subtle hint.
他今早反应有点儿慢，没注意到她微妙的暗示。
3、
There are subtle differences between the two versions.
两个版本之间有一些细微的差异。
