The boy surrendered the catapult to the teacher.
那孩子把弹弓交给了老师。
This is how they use conflict as a catapult to high performance.
这样利用冲突，他们就能让自己的表现更上一层楼。
On that type of aircraft carrier a catapult was used to help launch aircraft.
在那种航空母舰上，飞机由弹射器发射。
On that type of aircraft carrier a catapult was used to help launch aircraft.
在那种航空母舰上，飞机由弹射器发射。
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