Definitions

[1] vt. 加强, 变坚固

[2] vi. 变强, 股票上涨

[3] [经] 强劲, 增强

[ 'strɛŋθən ]

1. It will also help to strengthen the city's economy.
   它也会促进城市的经济发展。
2. Courage is very important. Like a muscle, it is strengthened by use.
   勇气是非常重要的。比如肌肉，经常使用才得以加强。
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