преграждать bedeutet auf Englisch

bar [barred, barred, barring, bars]▼(to obstruct the passage of)
verb
[UK: bɑː(r)] [US: ˈbɑːr]

block [blocked, blocking, blocks]▼(to fill, making it impossible to pass)
verb
[UK: ˈblɒk] [US: ˈblɑːk]