a.

1. 足够的，充分的[（+for）][+to-v]
   Her income is not sufficient to support her family.

   她的收入不够养活家人。

   $2000 will be sufficient for the trip.

   这次旅行两千元就够了。

   They had food and clothing sufficient for their needs.

   他们有足够必需食品和衣服。

2. 【古】能胜任的，有充分能力的[（+for）]

n.

1. 足量，充足[U]

adj.

det.