Step-by-step explanation:
1. After chalking that feat in the long jump, I just looked on, lost in wonder at what I just did. I least expected I could break a world record.
2. I bless the day I met you; I curse the day you left me.
3. Unlike traditional bulletproof vests, which can prevent serious injury but cannot prevent the wearer from being knocked over by the impact, new vest designs are being developed in the United States where bullets bounce off.
4. She usually spends her vacation swimming, partying, and practicing on her keyboard.
5. It rather causes financial loss to the state.
6. The fisherman toiled throughout the night, but they did not catch even one fish.
7. In other words, it is a step in the right direction.
8. One of the hundred thousand prisoners kept in the underground dungeons has escaped.
9. The robot banged its head against the ceiling.
10. The steps required for the robot to complete the task are as follows: the robot explores the given world, locates a treasure, stops, and picks up the treasure.
(Note: I have corrected the errors in the sentences above.)