Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
delivery – n. the act of taking goods to a person or place
customer – n. a person who buys goods or services from a business
drone – n. an unmanned aircraft guided by computers or human operators from a distance
prescription – n. an order written by a doctor that says a patient can be given a medicine or treatment
app – n. a program for a smartphone or other electronic device that performs a special operation
park – v. to bring a vehicle to a halt and leave it
photo – n. short for photograph; an image or picture
