This is the 3030th most frequent Chinese word.
襲擊
"襲擊" means "attack" or "assault."
In this sentence, 襲擊 is used as a noun meaning 'attack' to describe the violent act carried out by the group.
昨天,一群歹徒讓這個地區遭受了猛烈的襲擊。
Yesterday, a group of thugs subjected this area to a fierce attack.
Here, 襲擊 is used as a verb meaning 'to attack,' indicating the action planned by the group against the residents.
警察正在調查那個未知的團體計畫襲擊居民的情況。
The police are investigating the unknown group's plan to attack the residents.
In this context, 襲擊 is paired with 意外的 (unexpected) as a noun referring to the assault event.