He acted wrongly and without scruple.他做了错事毫不内疚.
They wriggled uncomfortably, for they knew he would not scruple [hesitate] to ram them down with poles.他们不安地扭动着身子,因为他们知道他会毫不犹豫地用棍子把他们打下去。
He did not scruple to use it.他满不在乎地打算用这笔钱。