rǎn​shàng

acquire

染上 rǎn​shàng
acquire verb
to pick up or develop a bad habit, vice, or addiction

Unfortunately, he became addicted to drugs and ruined his future.

contract verb
to catch or become infected with a disease

He accidentally caught the flu during his trip.

Frequency

Movie subtitles
2.00 per million appears in 1% of films
Written text
2.77 per million

Sources

Definitions
CC-CEDICT