VOA慢速英语:沃尔玛尝试使用无人机运送新冠检测试剂盒

drone – n. an unmanned aircraft

kit – n. equipment or materials needed for a special purpose

swab – n. a small piece of material used to collect a small amount of a substance from a person's body

customer – n. a person who pays a business for goods or services

enhance – v. to improve

capability – n. the ability to do something

pick-up – adj. the act of going to a business to get things that were bought

delivery – n. the taking of things from one place to another

package – n. a box or large envelope that is sent or delivered usually through the mail or by another delivery service