This is the 2457th most frequent Japanese word.
乗り越え
"乗り越え" means "to overcome" or "to get through."
In this sentence, '乗り越えて' (overcame) refers to overcoming abstract challenges or difficulties.
困難を乗り越えて成功を収めました。
I overcame the difficulties and achieved success.
Here, '乗り越える' (climbing over) is used in a literal sense, indicating physically getting over an obstacle.
壁を乗り越えることができる装置を発明しました。
We invented a device capable of climbing over walls.
In this example, '乗り越えられる' (overcoming) is connected to building the strength to face difficulties.