performance

A product's performance refers to how well it works.

Customers are willing to pay more for high-performance products because they work well.

She isn't satisfied with the performance of her laptop.

The car's performance is excellent.

durability 耐用性

Durability is how long a product can be used without breaking or getting weaker.

If a product is durable, it won't need to be replaced for a long time.

Their products have a high reputation for durability.

Durable goods can last for a long time.

cost-effectiveness成本效益

Cost-effectiveness is how useful something is compared to its cost.

If you just want to send emails, an expensive computer may not be cost-effective.

But it may be more cost-effective if you use a lot of software.

It's not cost-effective for him to buy the car.

She doesn't think it's cost-effective to buy a new phone.

appearance 外觀

A product's appearance is how it looks.

Some customers prefer to buy products with a better appearance, even if they cost more.

The appearance of smartphones has changed a lot.

He bought the headphones because of their appearance.

safety 安全性

Safety refers to how safe something is to use.

Safety is often a concern for parents when buying products for their children.

The restaurant has big food safety problems.

Suppliers must be sure their products are safe to use.