(of people) unable to express oneself clearly or easily

không diễn đạt được, khó nói
marked by ill omens or signs, especially of future misfortune or failure

không thuận lợi, đừng hy vọng
happening or continuing without interruption or stopping

không ngừng, liên tục
impossible to be conquered or overcome

không thể bị chinh phục, bất khuất
the harmfulness and the high contamination rate of a disease

mức độ độc hại, tính độc
a small book with a paper cover giving information about a particular subject

tờ rơi, sách nhỏ
someone who writes pamphlets, especially one who promotes partisan views on political issues

người viết tài liệu tuyên truyền, người phát hành truyền đơn
more than enough to meet the needs or exceed expectations

dồi dào, đầy đủ
(physics) the maximum distance a vibrating material, sound wave, etc. such as a pendulum travels from its first position

biên độ, độ biên
to state publicly that one takes no responsibility for something or has no knowledge of it

từ chối, khước từ
to make something known to someone or the public, particularly when it was a secret at first

tiết lộ, công bố
to break the connection between people, objects, devices etc.

ngắt kết nối, cắt đứt kết nối
doing something secretly in an attempt to avoid notice

lén lút, bí mật
in a secretive manner to avoid drawing attention

lén lút, ẩm thầm
