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a sudden or disastrous event that destroys or changes a whole region or system
đại biến động
a person, thing, or event that provokes or accelerates change or activity by introducing new perspectives or actions
chất xúc tác
a large weapon that was used in ancient times to throw stones or other objects with great force
máy để đẩy phi cơ lên
a large waterfall where water rushes forcefully over a height
thác nước
the degree of roundness exhibited by a three-dimensional object
cầu thể
(geometry) a round 3D shape like a ball that is slightly flattened at the top and bottom points
hình tự cầu
a measuring tool used to determine the roundness of a curved surface
máy đo hình cầu
someone who moves from one country to another with the intention of settling there permanently
người di trú
to leave one's own country in order to live in a foreign country
di trú
to disturb or unsettle someone, causing them to feel worried or uneasy
gây sự
a disruption or disturbance of a normal state of mind or emotions
sự bối rối
to temporarily stitch two pieces of fabric together with long, loose stitches that can later be easily removed
đánh đòn
a fortified structure extending from a wall, typically angled, for defensive purposes
pháo đài
someone who spends or uses resources recklessly or wastefully
hoang đàng
a remarkable example of a particular quality, skill, or achievement
người kỳ dị
an individual, often a leader or authority figure, who possesses the power to create laws, particularly not directly elected by the people
nhà lập pháp
