regularly (r)
/ˈreɡ.jʊ.lərli/ 

đều đặn

occurring at fixed intervals

position (n)
/pəˈzɪʃ.ən/

vị trí

the right or appropriate place

overview (n)
/ˈəʊ.və.vjuː/ 

tổng quan

a short description of something that provides general information but no details

irritate (v)
/ˈɪr.ɪ.teɪt/

làm rát

to chafe or inflame, to bother

illuminate (v)
/ɪˈluː.mɪ.neɪt/

chiếu sáng

to provide or brighten with light

habit (n)
/ˈhæbət/

cách hành xử

usual behavior

evident (a)
/ˈev.ɪ.dənt/

rõ rệt, rành rành

easily seen or understood; obvious

encouragement (n)
/ɪnˈkʌr.ɪdʒ.mənt/ 

sự khuyến khích

the act of encouraging somebody to do something; something that encourages somebody

distraction (n)
/dɪˈstræk.ʃən/

sự xao lãng

the act of being turned away from the focus

catch up (phrasal verb)
/kætʃ/ 

cập nhật

to bring up to date

restore (v)
/rɪˈstɔːr/ 

khôi phục

to bring back to an original condition

dentist (n)
/ˈden.tɪst/

nha sĩ

a person whose job is treating people's teeth

gum (n)
/ɡʌm/

nướu răng, lợi

the firm pink flesh in your mouth that your teeth are fixed into

tooth (n)
/tuθ/

răng

any of the hard white structures in the mouth used for biting and chewing food

checkup (n)
/ˈtʃekˌʌp/

kiểm tra sức khoẻ

an examination by a doctor or dentist to make sure that you are healthy

stain (n)
/steɪn/

vết ố

a dirty mark on something that is difficult to remove

anesthesia (n)
/ˌæn·əsˈθi·ʒə/

sự gây mê, sự gây tê

the condition of not feeling pain, esp. by use of special drugs

orthodontics (n)
/ˌɔːr.θoʊˈdɑːn.t̬ɪks/

chỉnh răng

the treatment of problems concerning the position of the teeth and jaws

oral surgery (n)
/ˈɔr·əl ˈsɜr·dʒə·ri/

phẫu thuật răng miệng

a branch of dentistry that uses surgical methods to treat disorders and diseases of the teeth, gums, and jaws

extract (v)
/ɪkˈstrækt/

nhổ (răng...)

to remove or take out something