a.

1. 成熟的；酿熟的
   This is the most mature of his plays.

   这是他最成熟的一部剧作。

2. 成年人的
   She has the figure of a mature woman.

   她有成年女性的体型。

3. 稳重的；慎重的，周到的
   Can't you behave in a mature way?

   你的举止不能稳重一点吗？

4. （票据等）到期的；应支付的

vi.

1. 变成熟；长成；酿成
   Wine and judgement mature with age.

   酒陈味香，人老识深。

2. （票据等）到期
   Your deposit matures on April 3rd.

   你的存款四月三日到期。

vt.

1. 使成熟；使长成
   Her responsibilities matured her at an early age.

   她肩负的责任使她早熟。

2. 慎重作出；使完善
   He matured his plans for the long trip.

   他为这次长途旅行仔细地作了计划。

adj.

1. fully developed physically; full-grown.
   ▸having reached a stage of mental or emotional development characteristic of an adult; grown-up.
   ▸(of thought or planning) careful and thorough.
2. having reached the most fully developed stage in a process.
   ▸(of certain foodstuffs or drinks) ready for consumption; ripe.
   ▸denoting an economy or industry that has developed to a point where substantial expansion no longer takes place.
3. (of a bill) due for payment.

v.

1. become mature.
2. (of an insurance policy, security, etc.) reach the end of its term and hence become payable.