I. Theory
In English, the verb “to leave” has a rather wide range of meaning. In German, there are several verbs that mean “to leave” but have different nuances. Some always take an object while others do not.| Mein Nachbar musste sein Haus wegen eines Brandes verlassen. My neighbor had to leave his house due to a fire. Wenn ich ins Büro gehe, lasse ich meinen Hund in der Küche. When I go to the office, I leave my dog in the kitchen. |
In the first example above, verlassen is conveying “leave” in the sense of “leaving behind/abandoning.” In the second sentence, lassen means to “leave (a direct object) in a particular state/location”.