4000 Duolingo Vocabulary List

sinh thái học a biologist who studies the relationship between organisms and their environment

tiếng a reference work containing articles on various topics

điên rồ foolishness; lack of good sense, understanding, or foresight

Đại sứ quán the diplomatic building where ambassadors live or work; diplomatic representatives headed by an ambassador

thất thường irregularly; off and on

tầng lớp a group or class of persons enjoying the superior intellectual or social, or economic status

lũ low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding

ăn mòn eat away; wear away by abrasion; become worn

khai thác make use of, sometimes unjustly

chứng thực acknowledge by signing a bill, draft, or other instruments; approve; support

Đại sứ quán the diplomatic building where ambassadors live or work; diplomatic representatives headed by an ambassador

khó nắm bắt difficult to describe; difficult to detect or grasp by the mind

lũ low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding

Đại sứ quán the diplomatic building where ambassadors live or work; diplomatic representatives headed by an ambassador

enzyme any of several complex proteins that are produced by cells and act as catalysts in biochemical reactions

biến động a wave motion; a situation in which prices, levels, or interest rates go up and down

khắc the practice of incising a design onto a hard, flat surface by cutting grooves into it

tầng lớp a group or class of persons enjoying the superior intellectual or social, or economic status

sương mù droplets of water vapor suspended in the air near the ground; haze

Xây dựng decide upon and express in words;  develop all the details of something

giận dư infuriate; put into a rage; provoke to fury or madness; make furious

rộng patch; wide and open extent, as of surface, land, or sky

rìa margin; periphery; decorative border of hanging threads, cords, or strips, often attached to a separate band

trích draw or pull out, usually with some force or effort; remove; get despite difficulties or obstacles

cân bằng mental or emotional balance; state of balance of any causes, powers, or motives

chứng thực acknowledge by signing a bill, draft, or other instruments; approve; support

rộng patch; wide and open extent, as of surface, land, or sky

kỷ nguyên a particular period of history, especially one considered remarkable

điên rồ foolishness; lack of good sense, understanding, or foresight

công thức plan; directions for making something; a group of symbols that make a mathematical statement

ăn mòn eat away; wear away by abrasion; become worn

giận dư infuriate; put into a rage; provoke to fury or madness; make furious

trung thực faithfulness to obligations, duties, or observances

lũ low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding

rìa margin; periphery; decorative border of hanging threads, cords, or strips, often attached to a separate band

sinh thái học a biologist who studies the relationship between organisms and their environment

sương mù obscured by fog; indistinct or hazy in outline

nhân chứng a spectator who can describe what happened

tiếng a reference work containing articles on various topics

lỗi crack or breach; gap or fissure; defect; fault; a sudden burst of noise and disorder