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
(..) nothing less will protect Agnes and avenge Elizabeth's death. Red... how come... Harold, you and your people... I will always be more grateful than I could ever express, but I don't expect... or rather, I couldn't accept your involvement in this final act. I entered into this relationship (..)2016 TvShow: The Blacklist Title: Alexander Kirk (No. 14): Conclusion Season: 3 Episode 23