彻首彻尾 Origin — Chinese Character Wiki

chèshǒuchèwěi

from beginning to end

彻徹 chè adverbadjective

thorough

(bound form) thorough; penetrating; to pervade; to pass through
首 shǒu

beginning

(bound form) beginning; start; opening part
彻徹 chè adverbadjective

thorough

(bound form) thorough; penetrating; to pervade; to pass through
尾 wěi nounadverb

end; remainder

(bound form) end; extremity; conclusion; remaining part