HSK C7-9/V7-9
Correct

/ jiān /
Strokes

Definition

double/twice/simultaneous/holding two or more (official) posts at the same time

Example

As a Verb

hold two or more jobs/posts concurrently

1
shì
chǎngzhǎng
厂长
jiān
zǒnggōngchéngshī
总工程师
  

He is the vice-director and concurrently the chief engineer.

2
Chúfáng
厨房
jiān
cāntīng
餐厅

kitchen and dining room combined

3
Shēn
jiān
shǔ
zhí

hold several posts simultaneously; wear several hats

As an Adverb

simultaneously; concurrently

4
Zhège
这个
tīng
客厅
jiān
zuō
shūfáng
书房
  

The sitting room doubles as a study.

5
Jiānguǎn
兼管
jiàoxué
教学
yán
科研

be concurrently in charge of teaching and scientific research

As an Adjective

double; twice