用on hand造个句子。
1. I always keep a pen on hand in case I need to take notes.
firefighter2. The firefighter had a hose on hand to extinguish the flames.
3. The chef had all the necessary ingredients on hand to prepare the meal.
4. As a teacher, I always have extra pencils on hand for students who forget theirs.
5. The nurse had a first aid kit on hand to tend to minor injuries.
6. I keep a map on hand when I travel to unfamiliar places.
7. The mechanic had a variety of tools on hand to fix the car.
8. The store manager always keeps extra stock on hand to meet customer demands.
9. The lifeguard had a rescue buoy on hand in case of emergencies.

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