Conservationists say the law must be strengthened.

环保主义者称必须加强法制。

We have strengthened the franchise over the past year and GE Capital's earnings recovery should continue.

在过去的一年中，我们加强了特许经营，通用电气的资本收益恢复将继续。

Yesterday the pound strengthened against the dollar.

昨天，英镑对美元的汇率上升了。

The dollar strengthened against most other currencies.

美元与大多数其它货币相比升值了。

Their attitude only strengthened his resolve to fight on.

他们采取的态度反而使他坚定了继续战斗的决心。