concentrate (v)
/ˈkɑːn.sən.treɪt/

tập trung

to give all your attention to the thing you are doing

marvel (v)
/ˈmɑːr.vəl/ 

ngạc nhiên, kinh ngạc

to show or feel surprise or admiration

judge (v)
/dʒʌdʒ/

đánh giá

to form an opinion or conclusion about

buffalo horn (n)
/ˈbʌf.ə.ləʊ hɔːrn/

tù và sừng trâu

a wind instrument, conical in shape or wound into a spiral, originally made from an animal horn

primitive (adj)
/ˈprɪm.ɪ.tɪv/ 

nguyên thủy, ban sơ

at a very simple stage of development, before modern technology

notoriety (n)
 /ˌnoʊ.t̬əˈraɪ.ə.t̬i/

tiếng tăm xấu, sự tai tiếng

a situation in which someone or something is famous for something bad

cope with (phrasal verb)
/koʊp wɪð/

đương đầu với

to deal effectively with something difficult

hacker (n)
/ˈhæk.ɚ/ 

tin tặc

someone who uses a computer to connect to other people's computers secretly and often illegally

victim (n)
/ˈvɪk.tɪm/

nạn nhân

a person who has suffered the effects of violence or illness or bad luck

break into (phrasal verb)
/breɪk ˈɪntuː/

đột nhập

to enter or open (a place, vehicle, or container) forcibly

sitting duck (idiom)
 /ˈsɪtɪŋ dʌk/

mục tiêu dễ dàng

someone who is in a position in which it is easy for people to trick or attack them

emerge (v)
/ɪ ˈmɝːdʒ/

nổi lên, hiện ra

to come out of something or out from behind something

overload (v)
/ˌoʊ.vɚˈloʊd/

quá tải

to give a computer more information than it can process

lax (adj)
/læks/

lỏng lẻo

not made firm or tight

fire signal (n)
 /faɪr ˈsɪɡ.nəl/

tín hiệu lửa

a communication method by fire of human in the past

evoke (v)
/ɪ ˈvoʊk/

gợi lên (ký ức)

to bring a particular emotion, idea, or memory into your mind

drumbeat (n)
/ˈdrʌm.biːt/

tiếng trống

the steady beat of music played on drums

nomination (n)
/ˌnɑː.məˈneɪ.ʃən/

sự chỉ định, bổ nhiệm

an official suggestion that someone should get a job or a prize

lull into (phrasal verb)
/lʌl ˈɪntuː/

ru ngủ

to soothe (a person or animal) by soft sounds or motions

superficial (adj)
/ˌsuː.pɚˈfɪʃ.əl/

hời hợt, nông cạn

affecting or involving only the surface or outside part of something