(someone) look back over (someone's) shoulder

Translations
(кто-то) оглядывается назад через (чье-то) плечо
He always seems to look back over his shoulder, as if he's expecting trouble.
Он всегда, кажется, оглядывается назад через плечо, как будто ожидает неприятностей.
Definitions
To look back over one's shoulder means to glance behind oneself, often out of caution, suspicion, fear, or anxiety, as if checking to see if someone is following or watching.
Words
someone

pronoun
кто то
look

verb
смотреть
back

adverb
назад
over

preposition
через
someone

article or possessive pronoun
чей то
shoulder

noun
плечо