available. /??ve?.l?.b?l/ adj. 可用的，有空的

　　She's still available and you could give it a shot.

　　她还单身，你可以去尝试追一下。

　　unattached /??n.??t?t?t/ 未婚的，单身的；未恋爱的

　　He's very rich and graduated from a famous university. What's more, he's unattached.

　　他很有钱，毕业于一个名牌大学。而且，还单身。

　　I'm checking my options.

　　我还在挑呢。

　　I'm trying to find the right one.

　　我在找合适的呀。

　　I'm solo（single,only one person）

　　我单身，一个人。