您要查找的是不是：
- 习to practice
- 习得acquisition
- 不习not practised
- 学会熟练地操作电脑是不容易习得的。The skilful operation of a computer is hard to learn.
- 语言习得language acquisition
- 连续不断的习机轰鸣声老在头上响着，使得人人心烦意乱。The constant noise of air craft flying overhead gets on everyone's nerves.
- 采用一条德文习语to naturalize a German phrase
- 习驭TANG: horse trainer
