HSK 6 HSK V7-9
Correct

钻研

/ zuānyán / 
Strokes

Definition

to study meticulously/to delve into

Example

As a Verb

study intensively; dig into; do exhaustive research work

1
Nǔlì
努力
zuānyán
钻研
yèwù
业务

endeavour to gain professional proficiency

2
Zuānyán
钻研
shùxué
数学

dig at mathematics

3
Zuānyán
钻研
jìshù
技术
xìng
性
wèntí
问题

delve into the technical problem

4
Zuānyán
钻研
jìshù
技术

perfect one's skill; master technique

5
Zuānyán
钻研
guójìfǎ
国际法

study assiduously international law