vain attempt造句怎么写

The Chinese government has in vain attempted to deal with the evil by stringent laws.

But as to the causes of these general causes we in vain attempt the discovery.

In his vain attempt at "justice" against nature, the captain meets the ultimate tragedy. This was no documentary, however;

If you take the reflections from the hyperbolic mirror for the objects on the desk, you will for sure make a vain attempt to grasp them.

It spent its energy stuffing cash into Congress in a vain attempt to hold back the future instead of investing in the next generation technologies.

He made a vain attempt to reach the summit of the mountain.

A tight noseband is a vain attempt to disguise the fact that your horse is not ready for the things you are asking him to do.

Those without umbrellas had covered their heads with plastic bags, towels and books in a vain attempt to stay dry.

After a number of vain attempts to climb the mountain we were forced to return to camp.