scruple
1.He did not scruple to do it里的to do改作doing也可以，但不及用不定式普通。
2.下面五句意思相同。
- He had no scruples about borrowing things without permission.
- He made no scruple to borrow things without permission.
- He made no scruple about borrowing things without permission.
- He made no scruple of borrowing things without permission.
- He had no scruple in borrowing things without permission.
