如何使用 "cogitation" 造句

1. After much cogitation he rejected the offer .
做了仔细思考之后,他还是拒绝了邀请。
2. After much cogitation I have decided to resign .
我经过再叁考虑後决定辞职。
3. It is not cogitation ; it is a waste of life .
其实没必要想那么多,那只是在浪费生命。
4. You are affecting my cogitation .
你影响己的思考了。
5. Cogitation about preparation for setting up the system of reduction of hospital assets .
关于建立医院资产减值准备制度的思考。