入侵
rù​qīn HSK7

to invade

入侵 rù​qīn
to invade verb
(of a country or military force) to enter another territory by force

为什么外星人要入侵地球？

wèi​shén​me wài​xīng​rén yào rù​qīn dì​qiú?

Why would aliens invade the earth?

to hack into verb
to enter a computer system, network, or building illegally; to break in

另一个朋友问无人驾驶汽车会不会遭到黑客入侵。

lìng yī​ge péng​you wèn wú​rén​jià​shǐ qì​chē huì​bù​huì zāo​dào hēi​kè rù​qīn.

Another friend asked if driverless cars could be hacked.

to infest
to enter from the outside and spread within, used when harmful things like viruses, bacteria, or pests enter a body or an environment

Frequency
Movie subtitles
20.1 per million appears in 7% of films
Written text
10.6 per million

Details
HSK 3.0
Level 7

Cross-References

Same as

Sources
Frequency data
SUBTLEX-CHBCC Corpus (BLCU)