Meaning of chuán rǎn:
chuán rǎn
传染
Verb
to infect
Liúgǎn róngyì zài dōngjì chuánrǎn.
流感容易在冬季传染。
The flu easily spreads in winter.
Adjective
contagious
Gǎnmào shì yī zhǒng hěn róngyì chuánrǎn de jíbìng.
感冒是一种很容易传染的疾病。
The common cold is a disease that is very contagious.