Correct

兼修

/ jiān xiū / 
Strokes

Example

As a Verb

study two or more courses concurrently

1
Zhuāngōng
专攻
fǎlǜ
法律
  
,
jiān
兼
xiū
修
yīngyǔ
英语

specialize in law and sideline in English

2
Jiān
兼
xiū
修
liǎng
两
mén
门
kè
课

study two subjects concurrently

3
Jiān
兼
xiū
修
lìshǐ
历史

study history as well