“once available”簡單造句，once available造句子

The plentiful supply of land once available to settlers moving west is one ational gains are another.

Those cars are safer, last longer and are loaded with technology and features once available exclusively to the wealthiest buyers of luxury cars - from antilock brakes to GPS navigation systems.

For instance, consider that only a handful of varieties of potatoes dominate the current marketplace, whereas thousands of varieties were once available.