他使用约会软件只是为了约炮。

He uses dating apps only for casual ___hook-ups.

音乐节是结识新朋友和建立社交关系的好地方。

The music festival is a great place for meeting new people and making ___connections.

确保音响系统的所有线缆连接都正确无误。

Make sure all the ___hook-ups for the sound system are properly connected.