His rage and frustration 'expressed' [='showed, manifested'] 'themselves' as/in/through temper tantrums.
Her love of nature is 'expressed' [='shown, reflected'] in her paintings/music.
a room where nursing mothers can 'express' [='pump'] milk for their babies
(..) Tanaka, it is you who insults this council! Bastard! Fuck face! Gentlemen. Tanaka obviously has something on his mind. By all means, allow him to express it. Speak, of the perversion done to this council, ...which I love... ...more than my own children, ...by making a Chinese Jap-American (..)2003 Kill Bill: Vol. 1