English Coach

harbor (noun) 港、避難所、隠れ場所　(他動詞)　をかくまう、（悪意・希望など）を心に抱く、

(noun) a place on the coast where ships may moor in shelter, especially one protected from rough water by piers, jetties, and other artificial structures

(verb) keep (a thought or feeling, typically a negative one) in one's mind, especially secretly, give a home or shelter to

Japan harbored that Soviet mediates between Japan and United Nations.