v develop and reach maturity; undergo maturation
v develop and work out fully in one's mind
v become due for repayment
v cause to ripen or develop fully
v grow old or older
v cause to ripen and discharge pus
v. 成熟, 长成( mature的第三人称单数 ); （票据等）到期; （情感和认识）成熟; 使（技能或素质）成熟