To carry out.

实行。

To do frequently or as a rule.

常为；习为。

To work at or pursue as a profession.

从事；经营。

To perform often in order to become proficient.

不断练习已精通。

To train by frequent repetition; drill.

训练；操练。

To intrigue or plot.

【古】阴谋。

To do something as a habit.

惯作。

To follow a profession.

执业。

To do something often in order to be proficient.

经常练习。

To intrigue.

【古】阴谋。

To take advantage of someone.

利用(某人)。

Custom; habit.

(常用单数)常例；习惯。

The putting to actual use of theoretic knowledge.

实践。

The exercise of any profession.

执业；操业。

Also, a regular clientele in a profession.

(专门职业之固定的一批)主顾；客户。

Regular exercise as a means to learning.

练习。

Skill gained by such exercise.

老练；熟练。

The customary legal procedure in conducting suits at law.

【法律】诉讼手续。