老成的英文：
experienced
trained
- Dignified and experienced
持重老成 - Proud of her newly-acquired sophistication
她因最近学得老成而自豪 - He asked in a sharp, hard little voice-a voice immature, and yet, somehow not young.
他用尖细刺耳的声音轻轻问道——这声音既有些稚气，又有几分老成。 - I could match my cousin jasper's game-cock maturity with a sturdier fowl
我可以象斗鸡一样，用一只更强壮的种鸡斗败我堂兄的公鸡，斗败他的世故老成。
adj. 有经验的，经验丰富的；老练的，有见识的
- Popular art is experiencing a renaissance.
通俗艺术正在复兴。 - She is shrewd, capable, and experienced.
她精明干练。 - He is so experienced in the construction trade.
他在建筑这一行经验丰富。 - The management manned the ship with experienced hands.
管理部门给这条船配置了有经验的人员。 - The experienced and accomplished person has passed away
老成凋谢
n. 火车；行列；顺序；后果；裙裾
v. 训练，锻炼，培养；修剪；瞄准；拖曳；乘火车
- the tail of a train
火车的尾部 - explosive train
火药系 - Is this dog trained?
这狗受过排便训练吗？ - The train was in motion.
火车开动了。 - This is a passenger train.
这是辆客运列车。