= the person who studies cultures of the past, and of periods of history by examining the parts of buildings and objects found in the ground = nhà khảo cổ học
archeologist (n)
the process of making air, water, soil, etc. dirty; the state of being dirty = sự ô nhiễm
pollution (n)
= the person who works in a restaurant = phục vụ bàn
waiter (n)
= has lots of people = đông đúc
crowded (adj)
= the person who works on a ship or a boat = thủy thủ
sailor (n)
= opposite of quiet
noisy (adj) ồn ào
the system of buses, trains, etc. provided by the government or by companies, which people use to travel from one place to another = phương tiện giao thông công cộng
public transport (n)
= when people eat in the middle of the day
lunch time
the area without cars
no-car zone (n)
a thing that is difficult to deal with or to understand = vấn đề
problem (n)
= has bad air = ô nhiễm
polluted (adj)
= a public performance of music
music concert
= the person who works in an office = kế toán
accountant (n)
= many people like it = = phổ biến/ nổi tiếng
popular (adj)
= opposite of old
modern (adj)
= the person who works in a shop = nhân viên bán hàng
sales assistant (n)
= doesn't cost money
free
= the person who works on a plane = phi công
pilot (n)
the vehicles that are on a road at a particular time
traffic (n)
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