You can save considerable expenses each year in that way.

用那种方法你每年都可以节约不少开支。

Neither of those two circumstances, therefore, could occasion any very considerable expense to the state.

因此，这两种情况都不会给国家带来任何非常可观的开支。

The powder which is spent in a modern review is lost irrecoverably, and occasions a very considerable expense.

花在现代评论上的火药一旦丢失就无法挽回， 而且会造成非常可观的开支。