HSK 6 HSK V7-9
Correct

密封

/ mìfēng / 
Strokes

Definition

to seal up

Example

As a Verb

seal up; seal airtight

1
Yòng
用
báilà
白蜡
mìfēng
密封
píngkǒu
瓶口

seal up a bottle with white wax

2
Mìfēng
密封
bǎocún
保存

preserve sth by sealing it airtight

3
Mìfēng
密封
wénjiàn
文件

seal a document

4
Mìfēng
密封
shìjuàn
试卷

seal up test papers

As an Adjective

airtight; hermetic

5
Mìfēng
密封
róngqì
容器

hermetically sealed container

6
Mìfēng
密封
de
的
shìjuàn
试卷

sealed test papers

As a Noun

seal

7
Mìfēng
密封
yǐjīng
已经
mósǔn
磨损
  
,
jīqì
机器
lòu
漏
yóu
油
le
了
  
。

The seal has worn and the machine is losing oil.