伤心

sad; low; heartbroken; hurt; broken-hearted; grieved; sorrowful; depressed; melancholic; sorrow; grief; heartache; sadness; depression; heartbreak; sadly; down; grieve; sadden; distress; crush; cut up; tear at your heart

难过

sad; sorry; unhappy; depressed; sorrowful; distressed; upset; grieved; wretched; sadly; unhappily; sorrowfully; sadness; distress; sorrow; grief; paddy; twinge; grieve; sadden; suffer; feel sad; feel sorry; feel distressed; feel upset; feel bad; have a hard time; be hard to bear