I was alone in an unfamiliar city.我独自身处一个陌生的城市。

Your baby may respond to unfamiliar faces too.宝宝对不熟悉的面孔可能也会作出反应。

Once she's built up her confidence, she may be less shy with unfamiliar people.她一旦建立起了自信, 在陌生人面前也许就不会那么害羞了。

Keep an ongoing list of unfamiliar words.不断把遇到的生词记下来。

The plants were unfamiliar to me.我不认识这些植物。

She is unfamiliar with Japanese culture.她不熟悉日本文化。