Nice-looking means attractive in a warm, everyday way — pleasant to look at, not a movie-star word. We use it of people, and sometimes of a house, a car, or a piece of clothing. It is kinder and lighter than beautiful or handsome. Someone can be nice-looking without being a model. It is not very formal, and it is not rude; a parent or a friend might say it. Though actually it is a little softer than good-looking: good-looking often points at a person's face and body, while nice-looking can just mean this looks pleasant. We write it with a hyphen.

長得好看、模樣不錯