1. A descent by parachute. 
   空投用降落伞投下
2. To deliver by parachute. 
   伞投，空投用降落伞投放
3. Happiness consists in content-ment. 
   知足常乐。
4. design of the align ment of highway 
   公路线形设计
5. Supplies were dropped by parachute. 
   补给品由降落伞空投。

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