HSK 6 HSK V7-9
Correct

密封

/ mìfēng /
Strokes

Definition

to seal up

Example

As a Verb

seal up; seal airtight

1
Yòng
bái
白蜡
fēng
密封
píngkǒu
瓶口

seal up a bottle with white wax

2
fēng
密封
bǎocún
保存

preserve sth by sealing it airtight

3
fēng
密封
wénjiàn
文件

seal a document

4
fēng
密封
shìjuàn
试卷

seal up test papers

As an Adjective

airtight; hermetic

5
fēng
密封
róng
容器

hermetically sealed container

6
fēng
密封
de
shìjuàn
试卷

sealed test papers

As a Noun

seal

7
fēng
密封
jīng
已经
sǔn
磨损
  
,
机器
lòu
yóu
le
  

The seal has worn and the machine is losing oil.