delicate;subtle;tricksy;tricky;delicacy ;
例句:
He sensed the delicacy of the situation.
他感觉到了形势的微妙。
A real flame of love is a subtle thing.
真正的爱情之火是一种微妙的东西.
Her whole attitude had undergone a subtle change.
她的整个态度发生了微妙的变化.